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Finding the Fourth Proportional to 416,251.20, 623,455.20 and 342,523.20

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Solution

The fourth proportional to 416,251.20, 623,455.20 and 342,523.20 is: 513,026.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,251.20 : 623,455.20 = 342,523.20 : x
  2. Step 2: Convert to fraction form
    416,251.20/623,455.20 = 342,523.20/x
  3. Step 3: Cross multiply
    416,251.20x = 623,455.20 × 342,523.20
  4. Step 4: Simplify right side
    416,251.20x = 213,547,870,160.64
  5. Step 5: Solve for x
    x = 213,547,870,160.64/416,251.20
  6. Step 6: Final answer
    x = 513,026.44

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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.