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Finding the Fourth Proportional to 609,046.57, 840,291.04 and 354,348.55

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Solution

The fourth proportional to 609,046.57, 840,291.04 and 354,348.55 is: 488,888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,046.57 : 840,291.04 = 354,348.55 : x
  2. Step 2: Convert to fraction form
    609,046.57/840,291.04 = 354,348.55/x
  3. Step 3: Cross multiply
    609,046.57x = 840,291.04 × 354,348.55
  4. Step 4: Simplify right side
    609,046.57x = 297,755,913,095.29
  5. Step 5: Solve for x
    x = 297,755,913,095.29/609,046.57
  6. Step 6: Final answer
    x = 488,888.58

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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.