Home / 1,119,820.90-1,545,286.26-636,318.94

Finding the Fourth Proportional to 1,119,820.90, 1,545,286.26 and 636,318.94

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Solution

The fourth proportional to 1,119,820.90, 1,545,286.26 and 636,318.94 is: 878,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,820.90 : 1,545,286.26 = 636,318.94 : x
  2. Step 2: Convert to fraction form
    1,119,820.90/1,545,286.26 = 636,318.94/x
  3. Step 3: Cross multiply
    1,119,820.90x = 1,545,286.26 × 636,318.94
  4. Step 4: Simplify right side
    1,119,820.90x = 983,294,914,959.76
  5. Step 5: Solve for x
    x = 983,294,914,959.76/1,119,820.90
  6. Step 6: Final answer
    x = 878,082.30

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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.