Home / 420,547.20-580,354.94-229,560.60

Finding the Fourth Proportional to 420,547.20, 580,354.94 and 229,560.60

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Solution

The fourth proportional to 420,547.20, 580,354.94 and 229,560.60 is: 316,793.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,547.20 : 580,354.94 = 229,560.60 : x
  2. Step 2: Convert to fraction form
    420,547.20/580,354.94 = 229,560.60/x
  3. Step 3: Cross multiply
    420,547.20x = 580,354.94 × 229,560.60
  4. Step 4: Simplify right side
    420,547.20x = 133,226,627,091.56
  5. Step 5: Solve for x
    x = 133,226,627,091.56/420,547.20
  6. Step 6: Final answer
    x = 316,793.52

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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.