Home / 1,999,121.28-2,998,679.70-651,281.96

Finding the Fourth Proportional to 1,999,121.28, 2,998,679.70 and 651,281.96

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Solution

The fourth proportional to 1,999,121.28, 2,998,679.70 and 651,281.96 is: 976,922.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,121.28 : 2,998,679.70 = 651,281.96 : x
  2. Step 2: Convert to fraction form
    1,999,121.28/2,998,679.70 = 651,281.96/x
  3. Step 3: Cross multiply
    1,999,121.28x = 2,998,679.70 × 651,281.96
  4. Step 4: Simplify right side
    1,999,121.28x = 1,952,985,992,428.21
  5. Step 5: Solve for x
    x = 1,952,985,992,428.21/1,999,121.28
  6. Step 6: Final answer
    x = 976,922.22

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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.