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Finding the Fourth Proportional to 579,479.60, 868,927.80 and 342,894.80

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Solution

The fourth proportional to 579,479.60, 868,927.80 and 342,894.80 is: 514,169.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,479.60 : 868,927.80 = 342,894.80 : x
  2. Step 2: Convert to fraction form
    579,479.60/868,927.80 = 342,894.80/x
  3. Step 3: Cross multiply
    579,479.60x = 868,927.80 × 342,894.80
  4. Step 4: Simplify right side
    579,479.60x = 297,950,824,195.44
  5. Step 5: Solve for x
    x = 297,950,824,195.44/579,479.60
  6. Step 6: Final answer
    x = 514,169.65

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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.