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Finding the Fourth Proportional to 656,522.78, 906,008.34 and 370,042.87

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Solution

The fourth proportional to 656,522.78, 906,008.34 and 370,042.87 is: 510,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,522.78 : 906,008.34 = 370,042.87 : x
  2. Step 2: Convert to fraction form
    656,522.78/906,008.34 = 370,042.87/x
  3. Step 3: Cross multiply
    656,522.78x = 906,008.34 × 370,042.87
  4. Step 4: Simplify right side
    656,522.78x = 335,261,923,843.38
  5. Step 5: Solve for x
    x = 335,261,923,843.38/656,522.78
  6. Step 6: Final answer
    x = 510,663.05

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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.