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Finding the Fourth Proportional to 657,645.89, 907,576.65 and 371,159.82

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Solution

The fourth proportional to 657,645.89, 907,576.65 and 371,159.82 is: 512,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,645.89 : 907,576.65 = 371,159.82 : x
  2. Step 2: Convert to fraction form
    657,645.89/907,576.65 = 371,159.82/x
  3. Step 3: Cross multiply
    657,645.89x = 907,576.65 × 371,159.82
  4. Step 4: Simplify right side
    657,645.89x = 336,855,986,050.20
  5. Step 5: Solve for x
    x = 336,855,986,050.20/657,645.89
  6. Step 6: Final answer
    x = 512,214.85

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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.