Home / 869,764.04-1,304,333.38-300,990.70

Finding the Fourth Proportional to 869,764.04, 1,304,333.38 and 300,990.70

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Solution

The fourth proportional to 869,764.04, 1,304,333.38 and 300,990.70 is: 451,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,764.04 : 1,304,333.38 = 300,990.70 : x
  2. Step 2: Convert to fraction form
    869,764.04/1,304,333.38 = 300,990.70/x
  3. Step 3: Cross multiply
    869,764.04x = 1,304,333.38 × 300,990.70
  4. Step 4: Simplify right side
    869,764.04x = 392,592,217,079.57
  5. Step 5: Solve for x
    x = 392,592,217,079.57/869,764.04
  6. Step 6: Final answer
    x = 451,377.84

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1.5x scale

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.