Home / 672,028.15-1,008,042.23-459,138.55

Finding the Fourth Proportional to 672,028.15, 1,008,042.23 and 459,138.55

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Solution

The fourth proportional to 672,028.15, 1,008,042.23 and 459,138.55 is: 688,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,028.15 : 1,008,042.23 = 459,138.55 : x
  2. Step 2: Convert to fraction form
    672,028.15/1,008,042.23 = 459,138.55/x
  3. Step 3: Cross multiply
    672,028.15x = 1,008,042.23 × 459,138.55
  4. Step 4: Simplify right side
    672,028.15x = 462,831,047,820.97
  5. Step 5: Solve for x
    x = 462,831,047,820.97/672,028.15
  6. Step 6: Final answer
    x = 688,707.83

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Double scale
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Similar ratio
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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.