Home / 988,998.40-1,483,351.80-279,098.20

Finding the Fourth Proportional to 988,998.40, 1,483,351.80 and 279,098.20

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Solution

The fourth proportional to 988,998.40, 1,483,351.80 and 279,098.20 is: 418,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,998.40 : 1,483,351.80 = 279,098.20 : x
  2. Step 2: Convert to fraction form
    988,998.40/1,483,351.80 = 279,098.20/x
  3. Step 3: Cross multiply
    988,998.40x = 1,483,351.80 × 279,098.20
  4. Step 4: Simplify right side
    988,998.40x = 414,000,817,346.76
  5. Step 5: Solve for x
    x = 414,000,817,346.76/988,998.40
  6. Step 6: Final answer
    x = 418,606.15

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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.