Home / 911,254.20-1,366,881.30-742,964.55

Finding the Fourth Proportional to 911,254.20, 1,366,881.30 and 742,964.55

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Solution

The fourth proportional to 911,254.20, 1,366,881.30 and 742,964.55 is: 1,114,446.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,254.20 : 1,366,881.30 = 742,964.55 : x
  2. Step 2: Convert to fraction form
    911,254.20/1,366,881.30 = 742,964.55/x
  3. Step 3: Cross multiply
    911,254.20x = 1,366,881.30 × 742,964.55
  4. Step 4: Simplify right side
    911,254.20x = 1,015,544,349,957.92
  5. Step 5: Solve for x
    x = 1,015,544,349,957.92/911,254.20
  6. Step 6: Final answer
    x = 1,114,446.83

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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.