Home / 762,503.93-1,142,957.79-256,890.18

Finding the Fourth Proportional to 762,503.93, 1,142,957.79 and 256,890.18

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Solution

The fourth proportional to 762,503.93, 1,142,957.79 and 256,890.18 is: 385,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,503.93 : 1,142,957.79 = 256,890.18 : x
  2. Step 2: Convert to fraction form
    762,503.93/1,142,957.79 = 256,890.18/x
  3. Step 3: Cross multiply
    762,503.93x = 1,142,957.79 × 256,890.18
  4. Step 4: Simplify right side
    762,503.93x = 293,614,636,691.59
  5. Step 5: Solve for x
    x = 293,614,636,691.59/762,503.93
  6. Step 6: Final answer
    x = 385,066.39

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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.