Home / 2,572,630.80-3,857,965.30-866,315.98

Finding the Fourth Proportional to 2,572,630.80, 3,857,965.30 and 866,315.98

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Solution

The fourth proportional to 2,572,630.80, 3,857,965.30 and 866,315.98 is: 1,299,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572,630.80 : 3,857,965.30 = 866,315.98 : x
  2. Step 2: Convert to fraction form
    2,572,630.80/3,857,965.30 = 866,315.98/x
  3. Step 3: Cross multiply
    2,572,630.80x = 3,857,965.30 × 866,315.98
  4. Step 4: Simplify right side
    2,572,630.80x = 3,342,216,989,675.49
  5. Step 5: Solve for x
    x = 3,342,216,989,675.49/2,572,630.80
  6. Step 6: Final answer
    x = 1,299,143.66

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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.