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Finding the Fourth Proportional to 508,000.30, 762,000.45 and 461,344.30

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Solution

The fourth proportional to 508,000.30, 762,000.45 and 461,344.30 is: 692,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,000.30 : 762,000.45 = 461,344.30 : x
  2. Step 2: Convert to fraction form
    508,000.30/762,000.45 = 461,344.30/x
  3. Step 3: Cross multiply
    508,000.30x = 762,000.45 × 461,344.30
  4. Step 4: Simplify right side
    508,000.30x = 351,544,564,204.94
  5. Step 5: Solve for x
    x = 351,544,564,204.94/508,000.30
  6. Step 6: Final answer
    x = 692,016.45

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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.