Home / 420,675.49-580,527.77-229,688.29

Finding the Fourth Proportional to 420,675.49, 580,527.77 and 229,688.29

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Solution

The fourth proportional to 420,675.49, 580,527.77 and 229,688.29 is: 316,967.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,675.49 : 580,527.77 = 229,688.29 : x
  2. Step 2: Convert to fraction form
    420,675.49/580,527.77 = 229,688.29/x
  3. Step 3: Cross multiply
    420,675.49x = 580,527.77 × 229,688.29
  4. Step 4: Simplify right side
    420,675.49x = 133,340,428,460.40
  5. Step 5: Solve for x
    x = 133,340,428,460.40/420,675.49
  6. Step 6: Final answer
    x = 316,967.43

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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.