Home / 1,248,311.20-1,870,009.20-1,159,837.60

Finding the Fourth Proportional to 1,248,311.20, 1,870,009.20 and 1,159,837.60

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Solution

The fourth proportional to 1,248,311.20, 1,870,009.20 and 1,159,837.60 is: 1,737,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,311.20 : 1,870,009.20 = 1,159,837.60 : x
  2. Step 2: Convert to fraction form
    1,248,311.20/1,870,009.20 = 1,159,837.60/x
  3. Step 3: Cross multiply
    1,248,311.20x = 1,870,009.20 × 1,159,837.60
  4. Step 4: Simplify right side
    1,248,311.20x = 2,168,906,982,505.92
  5. Step 5: Solve for x
    x = 2,168,906,982,505.92/1,248,311.20
  6. Step 6: Final answer
    x = 1,737,472.98

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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.