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Finding the Fourth Proportional to 658,891.10, 988,045.05 and 303,722.30

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Solution

The fourth proportional to 658,891.10, 988,045.05 and 303,722.30 is: 455,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,891.10 : 988,045.05 = 303,722.30 : x
  2. Step 2: Convert to fraction form
    658,891.10/988,045.05 = 303,722.30/x
  3. Step 3: Cross multiply
    658,891.10x = 988,045.05 × 303,722.30
  4. Step 4: Simplify right side
    658,891.10x = 300,091,315,089.62
  5. Step 5: Solve for x
    x = 300,091,315,089.62/658,891.10
  6. Step 6: Final answer
    x = 455,449.03

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Double scale
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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.