Home / 1,007,120.28-1,510,730.63-287,568.73

Finding the Fourth Proportional to 1,007,120.28, 1,510,730.63 and 287,568.73

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Solution

The fourth proportional to 1,007,120.28, 1,510,730.63 and 287,568.73 is: 431,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,120.28 : 1,510,730.63 = 287,568.73 : x
  2. Step 2: Convert to fraction form
    1,007,120.28/1,510,730.63 = 287,568.73/x
  3. Step 3: Cross multiply
    1,007,120.28x = 1,510,730.63 × 287,568.73
  4. Step 4: Simplify right side
    1,007,120.28x = 434,438,890,170.15
  5. Step 5: Solve for x
    x = 434,438,890,170.15/1,007,120.28
  6. Step 6: Final answer
    x = 431,367.43

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1.5x scale

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.