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Finding the Fourth Proportional to 579,417.60, 868,834.80 and 342,832.80

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Solution

The fourth proportional to 579,417.60, 868,834.80 and 342,832.80 is: 514,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,417.60 : 868,834.80 = 342,832.80 : x
  2. Step 2: Convert to fraction form
    579,417.60/868,834.80 = 342,832.80/x
  3. Step 3: Cross multiply
    579,417.60x = 868,834.80 × 342,832.80
  4. Step 4: Simplify right side
    579,417.60x = 297,865,067,221.44
  5. Step 5: Solve for x
    x = 297,865,067,221.44/579,417.60
  6. Step 6: Final answer
    x = 514,076.66

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Double scale
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1.5x scale

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.