Home / 426,545.06-639,815.76-173,769.17

Finding the Fourth Proportional to 426,545.06, 639,815.76 and 173,769.17

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Solution

The fourth proportional to 426,545.06, 639,815.76 and 173,769.17 is: 260,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,545.06 : 639,815.76 = 173,769.17 : x
  2. Step 2: Convert to fraction form
    426,545.06/639,815.76 = 173,769.17/x
  3. Step 3: Cross multiply
    426,545.06x = 639,815.76 × 173,769.17
  4. Step 4: Simplify right side
    426,545.06x = 111,180,250,369.04
  5. Step 5: Solve for x
    x = 111,180,250,369.04/426,545.06
  6. Step 6: Final answer
    x = 260,653.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.