Home / 1,134,625.32-1,565,286.93-812,217.78

Finding the Fourth Proportional to 1,134,625.32, 1,565,286.93 and 812,217.78

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Solution

The fourth proportional to 1,134,625.32, 1,565,286.93 and 812,217.78 is: 1,120,505.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,625.32 : 1,565,286.93 = 812,217.78 : x
  2. Step 2: Convert to fraction form
    1,134,625.32/1,565,286.93 = 812,217.78/x
  3. Step 3: Cross multiply
    1,134,625.32x = 1,565,286.93 × 812,217.78
  4. Step 4: Simplify right side
    1,134,625.32x = 1,271,353,875,347.62
  5. Step 5: Solve for x
    x = 1,271,353,875,347.62/1,134,625.32
  6. Step 6: Final answer
    x = 1,120,505.47

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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.