Home / 420,241.47-579,934.58-229,258.86

Finding the Fourth Proportional to 420,241.47, 579,934.58 and 229,258.86

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Solution

The fourth proportional to 420,241.47, 579,934.58 and 229,258.86 is: 316,377.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,241.47 : 579,934.58 = 229,258.86 : x
  2. Step 2: Convert to fraction form
    420,241.47/579,934.58 = 229,258.86/x
  3. Step 3: Cross multiply
    420,241.47x = 579,934.58 × 229,258.86
  4. Step 4: Simplify right side
    420,241.47x = 132,955,140,685.38
  5. Step 5: Solve for x
    x = 132,955,140,685.38/420,241.47
  6. Step 6: Final answer
    x = 316,377.96

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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.