Home / 971,327.12-1,340,398.31-535,761.72

Finding the Fourth Proportional to 971,327.12, 1,340,398.31 and 535,761.72

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Solution

The fourth proportional to 971,327.12, 1,340,398.31 and 535,761.72 is: 739,332.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,327.12 : 1,340,398.31 = 535,761.72 : x
  2. Step 2: Convert to fraction form
    971,327.12/1,340,398.31 = 535,761.72/x
  3. Step 3: Cross multiply
    971,327.12x = 1,340,398.31 × 535,761.72
  4. Step 4: Simplify right side
    971,327.12x = 718,134,101,371.89
  5. Step 5: Solve for x
    x = 718,134,101,371.89/971,327.12
  6. Step 6: Final answer
    x = 739,332.91

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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.