Home / 2,912,200.90-4,368,301.35-782,500.30

Finding the Fourth Proportional to 2,912,200.90, 4,368,301.35 and 782,500.30

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Solution

The fourth proportional to 2,912,200.90, 4,368,301.35 and 782,500.30 is: 1,173,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,200.90 : 4,368,301.35 = 782,500.30 : x
  2. Step 2: Convert to fraction form
    2,912,200.90/4,368,301.35 = 782,500.30/x
  3. Step 3: Cross multiply
    2,912,200.90x = 4,368,301.35 × 782,500.30
  4. Step 4: Simplify right side
    2,912,200.90x = 3,418,197,116,865.41
  5. Step 5: Solve for x
    x = 3,418,197,116,865.41/2,912,200.90
  6. Step 6: Final answer
    x = 1,173,750.45

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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.