Home / 714,734.28-1,071,863.40-288,159.92

Finding the Fourth Proportional to 714,734.28, 1,071,863.40 and 288,159.92

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Solution

The fourth proportional to 714,734.28, 1,071,863.40 and 288,159.92 is: 432,143.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,734.28 : 1,071,863.40 = 288,159.92 : x
  2. Step 2: Convert to fraction form
    714,734.28/1,071,863.40 = 288,159.92/x
  3. Step 3: Cross multiply
    714,734.28x = 1,071,863.40 × 288,159.92
  4. Step 4: Simplify right side
    714,734.28x = 308,868,071,594.93
  5. Step 5: Solve for x
    x = 308,868,071,594.93/714,734.28
  6. Step 6: Final answer
    x = 432,143.92

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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.