Home / 811,891.32-1,120,528.62-467,660.36

Finding the Fourth Proportional to 811,891.32, 1,120,528.62 and 467,660.36

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Solution

The fourth proportional to 811,891.32, 1,120,528.62 and 467,660.36 is: 645,439.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,891.32 : 1,120,528.62 = 467,660.36 : x
  2. Step 2: Convert to fraction form
    811,891.32/1,120,528.62 = 467,660.36/x
  3. Step 3: Cross multiply
    811,891.32x = 1,120,528.62 × 467,660.36
  4. Step 4: Simplify right side
    811,891.32x = 524,026,817,819.50
  5. Step 5: Solve for x
    x = 524,026,817,819.50/811,891.32
  6. Step 6: Final answer
    x = 645,439.61

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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.