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Finding the Fourth Proportional to 657,045.74, 906,722.96 and 370,565.22

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Solution

The fourth proportional to 657,045.74, 906,722.96 and 370,565.22 is: 511,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,045.74 : 906,722.96 = 370,565.22 : x
  2. Step 2: Convert to fraction form
    657,045.74/906,722.96 = 370,565.22/x
  3. Step 3: Cross multiply
    657,045.74x = 906,722.96 × 370,565.22
  4. Step 4: Simplify right side
    657,045.74x = 335,999,993,151.45
  5. Step 5: Solve for x
    x = 335,999,993,151.45/657,045.74
  6. Step 6: Final answer
    x = 511,379.91

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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.