Home / 648,076.89-972,298.52-221,705.04

Finding the Fourth Proportional to 648,076.89, 972,298.52 and 221,705.04

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Solution

The fourth proportional to 648,076.89, 972,298.52 and 221,705.04 is: 332,620.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,076.89 : 972,298.52 = 221,705.04 : x
  2. Step 2: Convert to fraction form
    648,076.89/972,298.52 = 221,705.04/x
  3. Step 3: Cross multiply
    648,076.89x = 972,298.52 × 221,705.04
  4. Step 4: Simplify right side
    648,076.89x = 215,563,482,268.54
  5. Step 5: Solve for x
    x = 215,563,482,268.54/648,076.89
  6. Step 6: Final answer
    x = 332,620.23

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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.