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Finding the Fourth Proportional to 657,089.62, 906,948.90 and 370,774.87

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Solution

The fourth proportional to 657,089.62, 906,948.90 and 370,774.87 is: 511,762.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,089.62 : 906,948.90 = 370,774.87 : x
  2. Step 2: Convert to fraction form
    657,089.62/906,948.90 = 370,774.87/x
  3. Step 3: Cross multiply
    657,089.62x = 906,948.90 × 370,774.87
  4. Step 4: Simplify right side
    657,089.62x = 336,273,858,226.77
  5. Step 5: Solve for x
    x = 336,273,858,226.77/657,089.62
  6. Step 6: Final answer
    x = 511,762.55

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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.