Home / 420,561.98-580,359.03-229,575.14

Finding the Fourth Proportional to 420,561.98, 580,359.03 and 229,575.14

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Solution

The fourth proportional to 420,561.98, 580,359.03 and 229,575.14 is: 316,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,561.98 : 580,359.03 = 229,575.14 : x
  2. Step 2: Convert to fraction form
    420,561.98/580,359.03 = 229,575.14/x
  3. Step 3: Cross multiply
    420,561.98x = 580,359.03 × 229,575.14
  4. Step 4: Simplify right side
    420,561.98x = 133,236,005,562.51
  5. Step 5: Solve for x
    x = 133,236,005,562.51/420,561.98
  6. Step 6: Final answer
    x = 316,804.68

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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.