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Finding the Fourth Proportional to 602,900.62, 903,877.29 and 412,785.90

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Solution

The fourth proportional to 602,900.62, 903,877.29 and 412,785.90 is: 618,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,900.62 : 903,877.29 = 412,785.90 : x
  2. Step 2: Convert to fraction form
    602,900.62/903,877.29 = 412,785.90/x
  3. Step 3: Cross multiply
    602,900.62x = 903,877.29 × 412,785.90
  4. Step 4: Simplify right side
    602,900.62x = 373,107,796,122.83
  5. Step 5: Solve for x
    x = 373,107,796,122.83/602,900.62
  6. Step 6: Final answer
    x = 618,854.56

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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.