Home / 819,801.96-1,131,425.40-480,270.18

Finding the Fourth Proportional to 819,801.96, 1,131,425.40 and 480,270.18

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Solution

The fourth proportional to 819,801.96, 1,131,425.40 and 480,270.18 is: 662,830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,801.96 : 1,131,425.40 = 480,270.18 : x
  2. Step 2: Convert to fraction form
    819,801.96/1,131,425.40 = 480,270.18/x
  3. Step 3: Cross multiply
    819,801.96x = 1,131,425.40 × 480,270.18
  4. Step 4: Simplify right side
    819,801.96x = 543,389,880,514.57
  5. Step 5: Solve for x
    x = 543,389,880,514.57/819,801.96
  6. Step 6: Final answer
    x = 662,830.67

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Half scale
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Double scale
Find fourth proportional to 819,802.96, 1,131,426.78 and 480,271.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.