Home / 785,995.70-1,179,242.65-280,545.47

Finding the Fourth Proportional to 785,995.70, 1,179,242.65 and 280,545.47

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Solution

The fourth proportional to 785,995.70, 1,179,242.65 and 280,545.47 is: 420,907.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,995.70 : 1,179,242.65 = 280,545.47 : x
  2. Step 2: Convert to fraction form
    785,995.70/1,179,242.65 = 280,545.47/x
  3. Step 3: Cross multiply
    785,995.70x = 1,179,242.65 × 280,545.47
  4. Step 4: Simplify right side
    785,995.70x = 330,831,188,998.16
  5. Step 5: Solve for x
    x = 330,831,188,998.16/785,995.70
  6. Step 6: Final answer
    x = 420,907.12

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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.