Home / 872,229.68-1,203,711.08-490,255.28

Finding the Fourth Proportional to 872,229.68, 1,203,711.08 and 490,255.28

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Solution

The fourth proportional to 872,229.68, 1,203,711.08 and 490,255.28 is: 676,571.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,229.68 : 1,203,711.08 = 490,255.28 : x
  2. Step 2: Convert to fraction form
    872,229.68/1,203,711.08 = 490,255.28/x
  3. Step 3: Cross multiply
    872,229.68x = 1,203,711.08 × 490,255.28
  4. Step 4: Simplify right side
    872,229.68x = 590,125,712,564.50
  5. Step 5: Solve for x
    x = 590,125,712,564.50/872,229.68
  6. Step 6: Final answer
    x = 676,571.47

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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.