Home / 1,130,802.80-1,696,204.20-499,391.60

Finding the Fourth Proportional to 1,130,802.80, 1,696,204.20 and 499,391.60

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Solution

The fourth proportional to 1,130,802.80, 1,696,204.20 and 499,391.60 is: 749,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,802.80 : 1,696,204.20 = 499,391.60 : x
  2. Step 2: Convert to fraction form
    1,130,802.80/1,696,204.20 = 499,391.60/x
  3. Step 3: Cross multiply
    1,130,802.80x = 1,696,204.20 × 499,391.60
  4. Step 4: Simplify right side
    1,130,802.80x = 847,070,129,364.72
  5. Step 5: Solve for x
    x = 847,070,129,364.72/1,130,802.80
  6. Step 6: Final answer
    x = 749,087.40

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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.