Home / 420,580.54-580,402.02-229,597.12

Finding the Fourth Proportional to 420,580.54, 580,402.02 and 229,597.12

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Solution

The fourth proportional to 420,580.54, 580,402.02 and 229,597.12 is: 316,844.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,580.54 : 580,402.02 = 229,597.12 : x
  2. Step 2: Convert to fraction form
    420,580.54/580,402.02 = 229,597.12/x
  3. Step 3: Cross multiply
    420,580.54x = 580,402.02 × 229,597.12
  4. Step 4: Simplify right side
    420,580.54x = 133,258,632,234.18
  5. Step 5: Solve for x
    x = 133,258,632,234.18/420,580.54
  6. Step 6: Final answer
    x = 316,844.50

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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.