Home / 1,028,963.20-1,543,503.12-319,092.16

Finding the Fourth Proportional to 1,028,963.20, 1,543,503.12 and 319,092.16

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Solution

The fourth proportional to 1,028,963.20, 1,543,503.12 and 319,092.16 is: 478,656.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,963.20 : 1,543,503.12 = 319,092.16 : x
  2. Step 2: Convert to fraction form
    1,028,963.20/1,543,503.12 = 319,092.16/x
  3. Step 3: Cross multiply
    1,028,963.20x = 1,543,503.12 × 319,092.16
  4. Step 4: Simplify right side
    1,028,963.20x = 492,519,744,527.54
  5. Step 5: Solve for x
    x = 492,519,744,527.54/1,028,963.20
  6. Step 6: Final answer
    x = 478,656.33

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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.