Home / 1,070,812.31-1,605,419.56-644,248.17

Finding the Fourth Proportional to 1,070,812.31, 1,605,419.56 and 644,248.17

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Solution

The fourth proportional to 1,070,812.31, 1,605,419.56 and 644,248.17 is: 965,891.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,812.31 : 1,605,419.56 = 644,248.17 : x
  2. Step 2: Convert to fraction form
    1,070,812.31/1,605,419.56 = 644,248.17/x
  3. Step 3: Cross multiply
    1,070,812.31x = 1,605,419.56 × 644,248.17
  4. Step 4: Simplify right side
    1,070,812.31x = 1,034,288,610,390.96
  5. Step 5: Solve for x
    x = 1,034,288,610,390.96/1,070,812.31
  6. Step 6: Final answer
    x = 965,891.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.