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Finding the Fourth Proportional to 586,405.80, 879,608.70 and 383,452.20

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Solution

The fourth proportional to 586,405.80, 879,608.70 and 383,452.20 is: 575,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,405.80 : 879,608.70 = 383,452.20 : x
  2. Step 2: Convert to fraction form
    586,405.80/879,608.70 = 383,452.20/x
  3. Step 3: Cross multiply
    586,405.80x = 879,608.70 × 383,452.20
  4. Step 4: Simplify right side
    586,405.80x = 337,287,891,154.14
  5. Step 5: Solve for x
    x = 337,287,891,154.14/586,405.80
  6. Step 6: Final answer
    x = 575,178.30

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Similar ratio
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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.