Home / 918,300.80-1,377,451.20-665,046.20

Finding the Fourth Proportional to 918,300.80, 1,377,451.20 and 665,046.20

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Solution

The fourth proportional to 918,300.80, 1,377,451.20 and 665,046.20 is: 997,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,300.80 : 1,377,451.20 = 665,046.20 : x
  2. Step 2: Convert to fraction form
    918,300.80/1,377,451.20 = 665,046.20/x
  3. Step 3: Cross multiply
    918,300.80x = 1,377,451.20 × 665,046.20
  4. Step 4: Simplify right side
    918,300.80x = 916,068,686,245.44
  5. Step 5: Solve for x
    x = 916,068,686,245.44/918,300.80
  6. Step 6: Final answer
    x = 997,569.30

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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.