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Finding the Fourth Proportional to 555,002.30, 832,503.45 and 415,034.30

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Solution

The fourth proportional to 555,002.30, 832,503.45 and 415,034.30 is: 622,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,002.30 : 832,503.45 = 415,034.30 : x
  2. Step 2: Convert to fraction form
    555,002.30/832,503.45 = 415,034.30/x
  3. Step 3: Cross multiply
    555,002.30x = 832,503.45 × 415,034.30
  4. Step 4: Simplify right side
    555,002.30x = 345,517,486,618.34
  5. Step 5: Solve for x
    x = 345,517,486,618.34/555,002.30
  6. Step 6: Final answer
    x = 622,551.45

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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.