Home / 766,288.77-1,057,423.88-456,174.90

Finding the Fourth Proportional to 766,288.77, 1,057,423.88 and 456,174.90

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Solution

The fourth proportional to 766,288.77, 1,057,423.88 and 456,174.90 is: 629,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,288.77 : 1,057,423.88 = 456,174.90 : x
  2. Step 2: Convert to fraction form
    766,288.77/1,057,423.88 = 456,174.90/x
  3. Step 3: Cross multiply
    766,288.77x = 1,057,423.88 × 456,174.90
  4. Step 4: Simplify right side
    766,288.77x = 482,370,233,419.60
  5. Step 5: Solve for x
    x = 482,370,233,419.60/766,288.77
  6. Step 6: Final answer
    x = 629,488.85

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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.