Home / 765,000.72-1,146,451.28-484,014.96

Finding the Fourth Proportional to 765,000.72, 1,146,451.28 and 484,014.96

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Solution

The fourth proportional to 765,000.72, 1,146,451.28 and 484,014.96 is: 725,358.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,000.72 : 1,146,451.28 = 484,014.96 : x
  2. Step 2: Convert to fraction form
    765,000.72/1,146,451.28 = 484,014.96/x
  3. Step 3: Cross multiply
    765,000.72x = 1,146,451.28 × 484,014.96
  4. Step 4: Simplify right side
    765,000.72x = 554,899,570,431.15
  5. Step 5: Solve for x
    x = 554,899,570,431.15/765,000.72
  6. Step 6: Final answer
    x = 725,358.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.