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Finding the Fourth Proportional to 677,278.38, 934,686.12 and 375,472.38

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Solution

The fourth proportional to 677,278.38, 934,686.12 and 375,472.38 is: 518,175.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,278.38 : 934,686.12 = 375,472.38 : x
  2. Step 2: Convert to fraction form
    677,278.38/934,686.12 = 375,472.38/x
  3. Step 3: Cross multiply
    677,278.38x = 934,686.12 × 375,472.38
  4. Step 4: Simplify right side
    677,278.38x = 350,948,822,029.37
  5. Step 5: Solve for x
    x = 350,948,822,029.37/677,278.38
  6. Step 6: Final answer
    x = 518,175.14

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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.