Home / 648,148.62-972,374.14-221,687.76

Finding the Fourth Proportional to 648,148.62, 972,374.14 and 221,687.76

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Solution

The fourth proportional to 648,148.62, 972,374.14 and 221,687.76 is: 332,583.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,148.62 : 972,374.14 = 221,687.76 : x
  2. Step 2: Convert to fraction form
    648,148.62/972,374.14 = 221,687.76/x
  3. Step 3: Cross multiply
    648,148.62x = 972,374.14 × 221,687.76
  4. Step 4: Simplify right side
    648,148.62x = 215,563,444,978.53
  5. Step 5: Solve for x
    x = 215,563,444,978.53/648,148.62
  6. Step 6: Final answer
    x = 332,583.36

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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.