Home / 1,138,706.10-1,708,059.15-719,838.90

Finding the Fourth Proportional to 1,138,706.10, 1,708,059.15 and 719,838.90

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Solution

The fourth proportional to 1,138,706.10, 1,708,059.15 and 719,838.90 is: 1,079,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,706.10 : 1,708,059.15 = 719,838.90 : x
  2. Step 2: Convert to fraction form
    1,138,706.10/1,708,059.15 = 719,838.90/x
  3. Step 3: Cross multiply
    1,138,706.10x = 1,708,059.15 × 719,838.90
  4. Step 4: Simplify right side
    1,138,706.10x = 1,229,527,419,670.94
  5. Step 5: Solve for x
    x = 1,229,527,419,670.94/1,138,706.10
  6. Step 6: Final answer
    x = 1,079,758.35

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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.