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Finding the Fourth Proportional to 657,801.80, 986,735.10 and 342,873.80

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Solution

The fourth proportional to 657,801.80, 986,735.10 and 342,873.80 is: 514,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,801.80 : 986,735.10 = 342,873.80 : x
  2. Step 2: Convert to fraction form
    657,801.80/986,735.10 = 342,873.80/x
  3. Step 3: Cross multiply
    657,801.80x = 986,735.10 × 342,873.80
  4. Step 4: Simplify right side
    657,801.80x = 338,325,613,330.38
  5. Step 5: Solve for x
    x = 338,325,613,330.38/657,801.80
  6. Step 6: Final answer
    x = 514,327.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.