Home / 1,455,728.32-2,008,877.94-811,134.76

Finding the Fourth Proportional to 1,455,728.32, 2,008,877.94 and 811,134.76

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Solution

The fourth proportional to 1,455,728.32, 2,008,877.94 and 811,134.76 is: 1,119,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,728.32 : 2,008,877.94 = 811,134.76 : x
  2. Step 2: Convert to fraction form
    1,455,728.32/2,008,877.94 = 811,134.76/x
  3. Step 3: Cross multiply
    1,455,728.32x = 2,008,877.94 × 811,134.76
  4. Step 4: Simplify right side
    1,455,728.32x = 1,629,470,725,731.19
  5. Step 5: Solve for x
    x = 1,629,470,725,731.19/1,455,728.32
  6. Step 6: Final answer
    x = 1,119,350.85

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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.