Home / 712,225.17-982,833.39-389,873.52

Finding the Fourth Proportional to 712,225.17, 982,833.39 and 389,873.52

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Solution

The fourth proportional to 712,225.17, 982,833.39 and 389,873.52 is: 538,005.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,225.17 : 982,833.39 = 389,873.52 : x
  2. Step 2: Convert to fraction form
    712,225.17/982,833.39 = 389,873.52/x
  3. Step 3: Cross multiply
    712,225.17x = 982,833.39 × 389,873.52
  4. Step 4: Simplify right side
    712,225.17x = 383,180,713,332.83
  5. Step 5: Solve for x
    x = 383,180,713,332.83/712,225.17
  6. Step 6: Final answer
    x = 538,005.02

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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.