Home / 758,812.32-1,047,649.28-486,997.38

Finding the Fourth Proportional to 758,812.32, 1,047,649.28 and 486,997.38

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Solution

The fourth proportional to 758,812.32, 1,047,649.28 and 486,997.38 is: 672,369.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,812.32 : 1,047,649.28 = 486,997.38 : x
  2. Step 2: Convert to fraction form
    758,812.32/1,047,649.28 = 486,997.38/x
  3. Step 3: Cross multiply
    758,812.32x = 1,047,649.28 × 486,997.38
  4. Step 4: Simplify right side
    758,812.32x = 510,202,452,083.90
  5. Step 5: Solve for x
    x = 510,202,452,083.90/758,812.32
  6. Step 6: Final answer
    x = 672,369.75

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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.