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Finding the Fourth Proportional to 420,557.96, 580,361.46 and 229,570.76

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Solution

The fourth proportional to 420,557.96, 580,361.46 and 229,570.76 is: 316,803.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,557.96 : 580,361.46 = 229,570.76 : x
  2. Step 2: Convert to fraction form
    420,557.96/580,361.46 = 229,570.76/x
  3. Step 3: Cross multiply
    420,557.96x = 580,361.46 × 229,570.76
  4. Step 4: Simplify right side
    420,557.96x = 133,234,021,446.91
  5. Step 5: Solve for x
    x = 133,234,021,446.91/420,557.96
  6. Step 6: Final answer
    x = 316,803.00

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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.