Home / 438,108.80-658,545.60-404,931.20

Finding the Fourth Proportional to 438,108.80, 658,545.60 and 404,931.20

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Solution

The fourth proportional to 438,108.80, 658,545.60 and 404,931.20 is: 608,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,108.80 : 658,545.60 = 404,931.20 : x
  2. Step 2: Convert to fraction form
    438,108.80/658,545.60 = 404,931.20/x
  3. Step 3: Cross multiply
    438,108.80x = 658,545.60 × 404,931.20
  4. Step 4: Simplify right side
    438,108.80x = 266,665,660,062.72
  5. Step 5: Solve for x
    x = 266,665,660,062.72/438,108.80
  6. Step 6: Final answer
    x = 608,674.51

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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.