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Finding the Fourth Proportional to 580,188.62, 870,855.67 and 435,591.51

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Solution

The fourth proportional to 580,188.62, 870,855.67 and 435,591.51 is: 653,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,188.62 : 870,855.67 = 435,591.51 : x
  2. Step 2: Convert to fraction form
    580,188.62/870,855.67 = 435,591.51/x
  3. Step 3: Cross multiply
    580,188.62x = 870,855.67 × 435,591.51
  4. Step 4: Simplify right side
    580,188.62x = 379,337,336,287.36
  5. Step 5: Solve for x
    x = 379,337,336,287.36/580,188.62
  6. Step 6: Final answer
    x = 653,817.26

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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.