Home / 869,505.20-1,304,905.80-448,564.40

Finding the Fourth Proportional to 869,505.20, 1,304,905.80 and 448,564.40

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Solution

The fourth proportional to 869,505.20, 1,304,905.80 and 448,564.40 is: 673,180.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,505.20 : 1,304,905.80 = 448,564.40 : x
  2. Step 2: Convert to fraction form
    869,505.20/1,304,905.80 = 448,564.40/x
  3. Step 3: Cross multiply
    869,505.20x = 1,304,905.80 × 448,564.40
  4. Step 4: Simplify right side
    869,505.20x = 585,334,287,233.52
  5. Step 5: Solve for x
    x = 585,334,287,233.52/869,505.20
  6. Step 6: Final answer
    x = 673,180.89

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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.