Home / 1,134,631.32-1,565,295.21-812,223.78

Finding the Fourth Proportional to 1,134,631.32, 1,565,295.21 and 812,223.78

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Solution

The fourth proportional to 1,134,631.32, 1,565,295.21 and 812,223.78 is: 1,120,513.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134,631.32 : 1,565,295.21 = 812,223.78 : x
  2. Step 2: Convert to fraction form
    1,134,631.32/1,565,295.21 = 812,223.78/x
  3. Step 3: Cross multiply
    1,134,631.32x = 1,565,295.21 × 812,223.78
  4. Step 4: Simplify right side
    1,134,631.32x = 1,271,369,992,282.09
  5. Step 5: Solve for x
    x = 1,271,369,992,282.09/1,134,631.32
  6. Step 6: Final answer
    x = 1,120,513.75

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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.