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Finding the Fourth Proportional to 567,192.53, 782,742.10 and 312,560.12

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Solution

The fourth proportional to 567,192.53, 782,742.10 and 312,560.12 is: 431,342.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,192.53 : 782,742.10 = 312,560.12 : x
  2. Step 2: Convert to fraction form
    567,192.53/782,742.10 = 312,560.12/x
  3. Step 3: Cross multiply
    567,192.53x = 782,742.10 × 312,560.12
  4. Step 4: Simplify right side
    567,192.53x = 244,653,963,142.25
  5. Step 5: Solve for x
    x = 244,653,963,142.25/567,192.53
  6. Step 6: Final answer
    x = 431,342.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.