Home / 887,867.30-1,331,813.25-288,831.57

Finding the Fourth Proportional to 887,867.30, 1,331,813.25 and 288,831.57

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Solution

The fourth proportional to 887,867.30, 1,331,813.25 and 288,831.57 is: 433,251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,867.30 : 1,331,813.25 = 288,831.57 : x
  2. Step 2: Convert to fraction form
    887,867.30/1,331,813.25 = 288,831.57/x
  3. Step 3: Cross multiply
    887,867.30x = 1,331,813.25 × 288,831.57
  4. Step 4: Simplify right side
    887,867.30x = 384,669,711,944.30
  5. Step 5: Solve for x
    x = 384,669,711,944.30/887,867.30
  6. Step 6: Final answer
    x = 433,251.36

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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.