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Finding the Fourth Proportional to 657,250.88, 907,006.56 and 355,444.96

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Solution

The fourth proportional to 657,250.88, 907,006.56 and 355,444.96 is: 490,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,250.88 : 907,006.56 = 355,444.96 : x
  2. Step 2: Convert to fraction form
    657,250.88/907,006.56 = 355,444.96/x
  3. Step 3: Cross multiply
    657,250.88x = 907,006.56 × 355,444.96
  4. Step 4: Simplify right side
    657,250.88x = 322,390,910,438.94
  5. Step 5: Solve for x
    x = 322,390,910,438.94/657,250.88
  6. Step 6: Final answer
    x = 490,514.23

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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.