Home / 1,145,683.40-1,581,093.12-636,385.76

Finding the Fourth Proportional to 1,145,683.40, 1,581,093.12 and 636,385.76

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Solution

The fourth proportional to 1,145,683.40, 1,581,093.12 and 636,385.76 is: 878,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,683.40 : 1,581,093.12 = 636,385.76 : x
  2. Step 2: Convert to fraction form
    1,145,683.40/1,581,093.12 = 636,385.76/x
  3. Step 3: Cross multiply
    1,145,683.40x = 1,581,093.12 × 636,385.76
  4. Step 4: Simplify right side
    1,145,683.40x = 1,006,185,146,801.97
  5. Step 5: Solve for x
    x = 1,006,185,146,801.97/1,145,683.40
  6. Step 6: Final answer
    x = 878,240.14

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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.