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Finding the Fourth Proportional to 586,280.95, 879,573.05 and 343,327.20

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Solution

The fourth proportional to 586,280.95, 879,573.05 and 343,327.20 is: 515,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,280.95 : 879,573.05 = 343,327.20 : x
  2. Step 2: Convert to fraction form
    586,280.95/879,573.05 = 343,327.20/x
  3. Step 3: Cross multiply
    586,280.95x = 879,573.05 × 343,327.20
  4. Step 4: Simplify right side
    586,280.95x = 301,981,354,248.04
  5. Step 5: Solve for x
    x = 301,981,354,248.04/586,280.95
  6. Step 6: Final answer
    x = 515,079.59

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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.