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Finding the Fourth Proportional to 423,251.40, 634,877.10 and 417,030.60

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Solution

The fourth proportional to 423,251.40, 634,877.10 and 417,030.60 is: 625,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,251.40 : 634,877.10 = 417,030.60 : x
  2. Step 2: Convert to fraction form
    423,251.40/634,877.10 = 417,030.60/x
  3. Step 3: Cross multiply
    423,251.40x = 634,877.10 × 417,030.60
  4. Step 4: Simplify right side
    423,251.40x = 264,763,177,939.26
  5. Step 5: Solve for x
    x = 264,763,177,939.26/423,251.40
  6. Step 6: Final answer
    x = 625,545.90

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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.