Home / 653,584.61-902,046.90-399,084.77

Finding the Fourth Proportional to 653,584.61, 902,046.90 and 399,084.77

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Solution

The fourth proportional to 653,584.61, 902,046.90 and 399,084.77 is: 550,798.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,584.61 : 902,046.90 = 399,084.77 : x
  2. Step 2: Convert to fraction form
    653,584.61/902,046.90 = 399,084.77/x
  3. Step 3: Cross multiply
    653,584.61x = 902,046.90 × 399,084.77
  4. Step 4: Simplify right side
    653,584.61x = 359,993,175,105.48
  5. Step 5: Solve for x
    x = 359,993,175,105.48/653,584.61
  6. Step 6: Final answer
    x = 550,798.13

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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.