Home / 1,134,626.32-1,565,288.31-812,218.78

Finding the Fourth Proportional to 1,134,626.32, 1,565,288.31 and 812,218.78

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Solution

The fourth proportional to 1,134,626.32, 1,565,288.31 and 812,218.78 is: 1,120,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,626.32 : 1,565,288.31 = 812,218.78 : x
  2. Step 2: Convert to fraction form
    1,134,626.32/1,565,288.31 = 812,218.78/x
  3. Step 3: Cross multiply
    1,134,626.32x = 1,565,288.31 × 812,218.78
  4. Step 4: Simplify right side
    1,134,626.32x = 1,271,356,561,496.46
  5. Step 5: Solve for x
    x = 1,271,356,561,496.46/1,134,626.32
  6. Step 6: Final answer
    x = 1,120,506.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.