Home / 3,087,308.87-4,630,542.89-812,642.78

Finding the Fourth Proportional to 3,087,308.87, 4,630,542.89 and 812,642.78

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Solution

The fourth proportional to 3,087,308.87, 4,630,542.89 and 812,642.78 is: 1,218,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087,308.87 : 4,630,542.89 = 812,642.78 : x
  2. Step 2: Convert to fraction form
    3,087,308.87/4,630,542.89 = 812,642.78/x
  3. Step 3: Cross multiply
    3,087,308.87x = 4,630,542.89 × 812,642.78
  4. Step 4: Simplify right side
    3,087,308.87x = 3,762,977,260,646.80
  5. Step 5: Solve for x
    x = 3,762,977,260,646.80/3,087,308.87
  6. Step 6: Final answer
    x = 1,218,853.51

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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.