Home / 773,965.80-1,159,964.55-689,328.90

Finding the Fourth Proportional to 773,965.80, 1,159,964.55 and 689,328.90

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Solution

The fourth proportional to 773,965.80, 1,159,964.55 and 689,328.90 is: 1,033,116.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,965.80 : 1,159,964.55 = 689,328.90 : x
  2. Step 2: Convert to fraction form
    773,965.80/1,159,964.55 = 689,328.90/x
  3. Step 3: Cross multiply
    773,965.80x = 1,159,964.55 × 689,328.90
  4. Step 4: Simplify right side
    773,965.80x = 799,597,087,290.50
  5. Step 5: Solve for x
    x = 799,597,087,290.50/773,965.80
  6. Step 6: Final answer
    x = 1,033,116.82

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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.