Home / 420,779.07-580,677.24-229,792.47

Finding the Fourth Proportional to 420,779.07, 580,677.24 and 229,792.47

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Solution

The fourth proportional to 420,779.07, 580,677.24 and 229,792.47 is: 317,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,779.07 : 580,677.24 = 229,792.47 : x
  2. Step 2: Convert to fraction form
    420,779.07/580,677.24 = 229,792.47/x
  3. Step 3: Cross multiply
    420,779.07x = 580,677.24 × 229,792.47
  4. Step 4: Simplify right side
    420,779.07x = 133,435,257,252.38
  5. Step 5: Solve for x
    x = 133,435,257,252.38/420,779.07
  6. Step 6: Final answer
    x = 317,114.77

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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.