Home / 989,538.66-1,484,405.19-279,572.22

Finding the Fourth Proportional to 989,538.66, 1,484,405.19 and 279,572.22

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Solution

The fourth proportional to 989,538.66, 1,484,405.19 and 279,572.22 is: 419,385.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,538.66 : 1,484,405.19 = 279,572.22 : x
  2. Step 2: Convert to fraction form
    989,538.66/1,484,405.19 = 279,572.22/x
  3. Step 3: Cross multiply
    989,538.66x = 1,484,405.19 × 279,572.22
  4. Step 4: Simplify right side
    989,538.66x = 414,998,454,347.82
  5. Step 5: Solve for x
    x = 414,998,454,347.82/989,538.66
  6. Step 6: Final answer
    x = 419,385.79

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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.