Home / 2,912,205.90-4,368,308.85-782,505.30

Finding the Fourth Proportional to 2,912,205.90, 4,368,308.85 and 782,505.30

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Solution

The fourth proportional to 2,912,205.90, 4,368,308.85 and 782,505.30 is: 1,173,757.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,205.90 : 4,368,308.85 = 782,505.30 : x
  2. Step 2: Convert to fraction form
    2,912,205.90/4,368,308.85 = 782,505.30/x
  3. Step 3: Cross multiply
    2,912,205.90x = 4,368,308.85 × 782,505.30
  4. Step 4: Simplify right side
    2,912,205.90x = 3,418,224,827,161.91
  5. Step 5: Solve for x
    x = 3,418,224,827,161.91/2,912,205.90
  6. Step 6: Final answer
    x = 1,173,757.95

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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.