Home / 1,320,489.52-1,822,248.12-716,877.52

Finding the Fourth Proportional to 1,320,489.52, 1,822,248.12 and 716,877.52

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Solution

The fourth proportional to 1,320,489.52, 1,822,248.12 and 716,877.52 is: 989,276.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,489.52 : 1,822,248.12 = 716,877.52 : x
  2. Step 2: Convert to fraction form
    1,320,489.52/1,822,248.12 = 716,877.52/x
  3. Step 3: Cross multiply
    1,320,489.52x = 1,822,248.12 × 716,877.52
  4. Step 4: Simplify right side
    1,320,489.52x = 1,306,328,711,222.93
  5. Step 5: Solve for x
    x = 1,306,328,711,222.93/1,320,489.52
  6. Step 6: Final answer
    x = 989,276.09

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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.