Home / 921,007.20-1,381,510.80-832,433.70

Finding the Fourth Proportional to 921,007.20, 1,381,510.80 and 832,433.70

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Solution

The fourth proportional to 921,007.20, 1,381,510.80 and 832,433.70 is: 1,248,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,007.20 : 1,381,510.80 = 832,433.70 : x
  2. Step 2: Convert to fraction form
    921,007.20/1,381,510.80 = 832,433.70/x
  3. Step 3: Cross multiply
    921,007.20x = 1,381,510.80 × 832,433.70
  4. Step 4: Simplify right side
    921,007.20x = 1,150,016,146,833.96
  5. Step 5: Solve for x
    x = 1,150,016,146,833.96/921,007.20
  6. Step 6: Final answer
    x = 1,248,650.55

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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.