Home / 763,939.20-1,146,081.60-448,233.60

Finding the Fourth Proportional to 763,939.20, 1,146,081.60 and 448,233.60

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Solution

The fourth proportional to 763,939.20, 1,146,081.60 and 448,233.60 is: 672,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,939.20 : 1,146,081.60 = 448,233.60 : x
  2. Step 2: Convert to fraction form
    763,939.20/1,146,081.60 = 448,233.60/x
  3. Step 3: Cross multiply
    763,939.20x = 1,146,081.60 × 448,233.60
  4. Step 4: Simplify right side
    763,939.20x = 513,712,281,461.76
  5. Step 5: Solve for x
    x = 513,712,281,461.76/763,939.20
  6. Step 6: Final answer
    x = 672,451.79

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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.