Home / 807,799.33-1,211,923.77-352,430.40

Finding the Fourth Proportional to 807,799.33, 1,211,923.77 and 352,430.40

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Solution

The fourth proportional to 807,799.33, 1,211,923.77 and 352,430.40 is: 528,743.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,799.33 : 1,211,923.77 = 352,430.40 : x
  2. Step 2: Convert to fraction form
    807,799.33/1,211,923.77 = 352,430.40/x
  3. Step 3: Cross multiply
    807,799.33x = 1,211,923.77 × 352,430.40
  4. Step 4: Simplify right side
    807,799.33x = 427,118,779,030.61
  5. Step 5: Solve for x
    x = 427,118,779,030.61/807,799.33
  6. Step 6: Final answer
    x = 528,743.67

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.