Home / 420,362.27-580,113.92-229,386.14

Finding the Fourth Proportional to 420,362.27, 580,113.92 and 229,386.14

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Solution

The fourth proportional to 420,362.27, 580,113.92 and 229,386.14 is: 316,560.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,362.27 : 580,113.92 = 229,386.14 : x
  2. Step 2: Convert to fraction form
    420,362.27/580,113.92 = 229,386.14/x
  3. Step 3: Cross multiply
    420,362.27x = 580,113.92 × 229,386.14
  4. Step 4: Simplify right side
    420,362.27x = 133,070,090,541.97
  5. Step 5: Solve for x
    x = 133,070,090,541.97/420,362.27
  6. Step 6: Final answer
    x = 316,560.50

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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.