Home / 1,011,705.02-1,396,443.84-667,791.98

Finding the Fourth Proportional to 1,011,705.02, 1,396,443.84 and 667,791.98

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Solution

The fourth proportional to 1,011,705.02, 1,396,443.84 and 667,791.98 is: 921,744.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,705.02 : 1,396,443.84 = 667,791.98 : x
  2. Step 2: Convert to fraction form
    1,011,705.02/1,396,443.84 = 667,791.98/x
  3. Step 3: Cross multiply
    1,011,705.02x = 1,396,443.84 × 667,791.98
  4. Step 4: Simplify right side
    1,011,705.02x = 932,533,996,872.40
  5. Step 5: Solve for x
    x = 932,533,996,872.40/1,011,705.02
  6. Step 6: Final answer
    x = 921,744.95

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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.