Home / 1,109,478-1,663,938.60-310,552.56

Finding the Fourth Proportional to 1,109,478, 1,663,938.60 and 310,552.56

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Solution

The fourth proportional to 1,109,478, 1,663,938.60 and 310,552.56 is: 465,750.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,478 : 1,663,938.60 = 310,552.56 : x
  2. Step 2: Convert to fraction form
    1,109,478/1,663,938.60 = 310,552.56/x
  3. Step 3: Cross multiply
    1,109,478x = 1,663,938.60 × 310,552.56
  4. Step 4: Simplify right side
    1,109,478x = 516,740,391,912.82
  5. Step 5: Solve for x
    x = 516,740,391,912.82/1,109,478
  6. Step 6: Final answer
    x = 465,750.91

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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.