Home / 422,721.53-583,353.57-229,128.46

Finding the Fourth Proportional to 422,721.53, 583,353.57 and 229,128.46

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Solution

The fourth proportional to 422,721.53, 583,353.57 and 229,128.46 is: 316,196.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,721.53 : 583,353.57 = 229,128.46 : x
  2. Step 2: Convert to fraction form
    422,721.53/583,353.57 = 229,128.46/x
  3. Step 3: Cross multiply
    422,721.53x = 583,353.57 × 229,128.46
  4. Step 4: Simplify right side
    422,721.53x = 133,662,905,129.60
  5. Step 5: Solve for x
    x = 133,662,905,129.60/422,721.53
  6. Step 6: Final answer
    x = 316,196.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.