Home / 918,728.92-1,378,373.14-469,765.16

Finding the Fourth Proportional to 918,728.92, 1,378,373.14 and 469,765.16

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Solution

The fourth proportional to 918,728.92, 1,378,373.14 and 469,765.16 is: 704,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,728.92 : 1,378,373.14 = 469,765.16 : x
  2. Step 2: Convert to fraction form
    918,728.92/1,378,373.14 = 469,765.16/x
  3. Step 3: Cross multiply
    918,728.92x = 1,378,373.14 × 469,765.16
  4. Step 4: Simplify right side
    918,728.92x = 647,511,677,477.39
  5. Step 5: Solve for x
    x = 647,511,677,477.39/918,728.92
  6. Step 6: Final answer
    x = 704,790.78

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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.