Home / 746,178.20-1,029,695.78-406,639.16

Finding the Fourth Proportional to 746,178.20, 1,029,695.78 and 406,639.16

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Solution

The fourth proportional to 746,178.20, 1,029,695.78 and 406,639.16 is: 561,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,178.20 : 1,029,695.78 = 406,639.16 : x
  2. Step 2: Convert to fraction form
    746,178.20/1,029,695.78 = 406,639.16/x
  3. Step 3: Cross multiply
    746,178.20x = 1,029,695.78 × 406,639.16
  4. Step 4: Simplify right side
    746,178.20x = 418,714,627,034.75
  5. Step 5: Solve for x
    x = 418,714,627,034.75/746,178.20
  6. Step 6: Final answer
    x = 561,145.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.