Home / 732,079.80-1,098,119.70-519,503.40

Finding the Fourth Proportional to 732,079.80, 1,098,119.70 and 519,503.40

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Solution

The fourth proportional to 732,079.80, 1,098,119.70 and 519,503.40 is: 779,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,079.80 : 1,098,119.70 = 519,503.40 : x
  2. Step 2: Convert to fraction form
    732,079.80/1,098,119.70 = 519,503.40/x
  3. Step 3: Cross multiply
    732,079.80x = 1,098,119.70 × 519,503.40
  4. Step 4: Simplify right side
    732,079.80x = 570,476,917,756.98
  5. Step 5: Solve for x
    x = 570,476,917,756.98/732,079.80
  6. Step 6: Final answer
    x = 779,255.10

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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.