Home / 2,912,487.72-4,368,729.28-782,571.84

Finding the Fourth Proportional to 2,912,487.72, 4,368,729.28 and 782,571.84

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Solution

The fourth proportional to 2,912,487.72, 4,368,729.28 and 782,571.84 is: 1,173,857.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,487.72 : 4,368,729.28 = 782,571.84 : x
  2. Step 2: Convert to fraction form
    2,912,487.72/4,368,729.28 = 782,571.84/x
  3. Step 3: Cross multiply
    2,912,487.72x = 4,368,729.28 × 782,571.84
  4. Step 4: Simplify right side
    2,912,487.72x = 3,418,844,511,111.48
  5. Step 5: Solve for x
    x = 3,418,844,511,111.48/2,912,487.72
  6. Step 6: Final answer
    x = 1,173,857.14

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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.