Home / 871,318.32-1,307,058.12-338,879.76

Finding the Fourth Proportional to 871,318.32, 1,307,058.12 and 338,879.76

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Solution

The fourth proportional to 871,318.32, 1,307,058.12 and 338,879.76 is: 508,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,318.32 : 1,307,058.12 = 338,879.76 : x
  2. Step 2: Convert to fraction form
    871,318.32/1,307,058.12 = 338,879.76/x
  3. Step 3: Cross multiply
    871,318.32x = 1,307,058.12 × 338,879.76
  4. Step 4: Simplify right side
    871,318.32x = 442,935,542,011.65
  5. Step 5: Solve for x
    x = 442,935,542,011.65/871,318.32
  6. Step 6: Final answer
    x = 508,351.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.