Home / 1,456,311.55-2,009,712.13-811,717.90

Finding the Fourth Proportional to 1,456,311.55, 2,009,712.13 and 811,717.90

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Solution

The fourth proportional to 1,456,311.55, 2,009,712.13 and 811,717.90 is: 1,120,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,311.55 : 2,009,712.13 = 811,717.90 : x
  2. Step 2: Convert to fraction form
    1,456,311.55/2,009,712.13 = 811,717.90/x
  3. Step 3: Cross multiply
    1,456,311.55x = 2,009,712.13 × 811,717.90
  4. Step 4: Simplify right side
    1,456,311.55x = 1,631,319,295,660.98
  5. Step 5: Solve for x
    x = 1,631,319,295,660.98/1,456,311.55
  6. Step 6: Final answer
    x = 1,120,171.92

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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.