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Finding the Fourth Proportional to 522,092.90, 783,139.35 and 342,467.30

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Solution

The fourth proportional to 522,092.90, 783,139.35 and 342,467.30 is: 513,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,092.90 : 783,139.35 = 342,467.30 : x
  2. Step 2: Convert to fraction form
    522,092.90/783,139.35 = 342,467.30/x
  3. Step 3: Cross multiply
    522,092.90x = 783,139.35 × 342,467.30
  4. Step 4: Simplify right side
    522,092.90x = 268,199,618,718.26
  5. Step 5: Solve for x
    x = 268,199,618,718.26/522,092.90
  6. Step 6: Final answer
    x = 513,700.95

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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.