Home / 763,649.28-1,053,820.80-424,105.92

Finding the Fourth Proportional to 763,649.28, 1,053,820.80 and 424,105.92

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Solution

The fourth proportional to 763,649.28, 1,053,820.80 and 424,105.92 is: 585,257.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,649.28 : 1,053,820.80 = 424,105.92 : x
  2. Step 2: Convert to fraction form
    763,649.28/1,053,820.80 = 424,105.92/x
  3. Step 3: Cross multiply
    763,649.28x = 1,053,820.80 × 424,105.92
  4. Step 4: Simplify right side
    763,649.28x = 446,931,639,899.14
  5. Step 5: Solve for x
    x = 446,931,639,899.14/763,649.28
  6. Step 6: Final answer
    x = 585,257.72

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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.