Home / 2,912,261.90-4,368,392.85-782,561.30

Finding the Fourth Proportional to 2,912,261.90, 4,368,392.85 and 782,561.30

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Solution

The fourth proportional to 2,912,261.90, 4,368,392.85 and 782,561.30 is: 1,173,841.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,261.90 : 4,368,392.85 = 782,561.30 : x
  2. Step 2: Convert to fraction form
    2,912,261.90/4,368,392.85 = 782,561.30/x
  3. Step 3: Cross multiply
    2,912,261.90x = 4,368,392.85 × 782,561.30
  4. Step 4: Simplify right side
    2,912,261.90x = 3,418,535,187,606.71
  5. Step 5: Solve for x
    x = 3,418,535,187,606.71/2,912,261.90
  6. Step 6: Final answer
    x = 1,173,841.95

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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.