Home / 2,912,289.40-4,368,434.10-782,588.80

Finding the Fourth Proportional to 2,912,289.40, 4,368,434.10 and 782,588.80

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Solution

The fourth proportional to 2,912,289.40, 4,368,434.10 and 782,588.80 is: 1,173,883.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,289.40 : 4,368,434.10 = 782,588.80 : x
  2. Step 2: Convert to fraction form
    2,912,289.40/4,368,434.10 = 782,588.80/x
  3. Step 3: Cross multiply
    2,912,289.40x = 4,368,434.10 × 782,588.80
  4. Step 4: Simplify right side
    2,912,289.40x = 3,418,687,600,198.08
  5. Step 5: Solve for x
    x = 3,418,687,600,198.08/2,912,289.40
  6. Step 6: Final answer
    x = 1,173,883.20

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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.