Home / 766,900.68-1,057,632.30-480,445.80

Finding the Fourth Proportional to 766,900.68, 1,057,632.30 and 480,445.80

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Solution

The fourth proportional to 766,900.68, 1,057,632.30 and 480,445.80 is: 662,582.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,900.68 : 1,057,632.30 = 480,445.80 : x
  2. Step 2: Convert to fraction form
    766,900.68/1,057,632.30 = 480,445.80/x
  3. Step 3: Cross multiply
    766,900.68x = 1,057,632.30 × 480,445.80
  4. Step 4: Simplify right side
    766,900.68x = 508,134,996,479.34
  5. Step 5: Solve for x
    x = 508,134,996,479.34/766,900.68
  6. Step 6: Final answer
    x = 662,582.53

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Double scale
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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.