Home / 774,640.80-1,161,961.20-745,116.30

Finding the Fourth Proportional to 774,640.80, 1,161,961.20 and 745,116.30

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Solution

The fourth proportional to 774,640.80, 1,161,961.20 and 745,116.30 is: 1,117,674.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,640.80 : 1,161,961.20 = 745,116.30 : x
  2. Step 2: Convert to fraction form
    774,640.80/1,161,961.20 = 745,116.30/x
  3. Step 3: Cross multiply
    774,640.80x = 1,161,961.20 × 745,116.30
  4. Step 4: Simplify right side
    774,640.80x = 865,796,230,087.56
  5. Step 5: Solve for x
    x = 865,796,230,087.56/774,640.80
  6. Step 6: Final answer
    x = 1,117,674.45

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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.