Home / 766,290.76-1,057,426.64-456,176.90

Finding the Fourth Proportional to 766,290.76, 1,057,426.64 and 456,176.90

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Solution

The fourth proportional to 766,290.76, 1,057,426.64 and 456,176.90 is: 629,491.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,290.76 : 1,057,426.64 = 456,176.90 : x
  2. Step 2: Convert to fraction form
    766,290.76/1,057,426.64 = 456,176.90/x
  3. Step 3: Cross multiply
    766,290.76x = 1,057,426.64 × 456,176.90
  4. Step 4: Simplify right side
    766,290.76x = 482,373,606,612.62
  5. Step 5: Solve for x
    x = 482,373,606,612.62/766,290.76
  6. Step 6: Final answer
    x = 629,491.61

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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.