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Finding the Fourth Proportional to 616,452.06, 850,463.55 and 386,875.38

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Solution

The fourth proportional to 616,452.06, 850,463.55 and 386,875.38 is: 533,737.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,452.06 : 850,463.55 = 386,875.38 : x
  2. Step 2: Convert to fraction form
    616,452.06/850,463.55 = 386,875.38/x
  3. Step 3: Cross multiply
    616,452.06x = 850,463.55 × 386,875.38
  4. Step 4: Simplify right side
    616,452.06x = 329,023,409,082.40
  5. Step 5: Solve for x
    x = 329,023,409,082.40/616,452.06
  6. Step 6: Final answer
    x = 533,737.22

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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.