Home / 2,912,574.35-4,368,857.74-782,658.52

Finding the Fourth Proportional to 2,912,574.35, 4,368,857.74 and 782,658.52

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Solution

The fourth proportional to 2,912,574.35, 4,368,857.74 and 782,658.52 is: 1,173,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,574.35 : 4,368,857.74 = 782,658.52 : x
  2. Step 2: Convert to fraction form
    2,912,574.35/4,368,857.74 = 782,658.52/x
  3. Step 3: Cross multiply
    2,912,574.35x = 4,368,857.74 × 782,658.52
  4. Step 4: Simplify right side
    2,912,574.35x = 3,419,323,720,000.15
  5. Step 5: Solve for x
    x = 3,419,323,720,000.15/2,912,574.35
  6. Step 6: Final answer
    x = 1,173,986.76

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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.