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Finding the Fourth Proportional to 503,691.18, 695,142.88 and 376,145.34

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Solution

The fourth proportional to 503,691.18, 695,142.88 and 376,145.34 is: 519,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,691.18 : 695,142.88 = 376,145.34 : x
  2. Step 2: Convert to fraction form
    503,691.18/695,142.88 = 376,145.34/x
  3. Step 3: Cross multiply
    503,691.18x = 695,142.88 × 376,145.34
  4. Step 4: Simplify right side
    503,691.18x = 261,474,754,946.18
  5. Step 5: Solve for x
    x = 261,474,754,946.18/503,691.18
  6. Step 6: Final answer
    x = 519,117.20

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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.