Home / 767,964.40-1,151,087.90-287,730.18

Finding the Fourth Proportional to 767,964.40, 1,151,087.90 and 287,730.18

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Solution

The fourth proportional to 767,964.40, 1,151,087.90 and 287,730.18 is: 431,273.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,964.40 : 1,151,087.90 = 287,730.18 : x
  2. Step 2: Convert to fraction form
    767,964.40/1,151,087.90 = 287,730.18/x
  3. Step 3: Cross multiply
    767,964.40x = 1,151,087.90 × 287,730.18
  4. Step 4: Simplify right side
    767,964.40x = 331,202,727,224.17
  5. Step 5: Solve for x
    x = 331,202,727,224.17/767,964.40
  6. Step 6: Final answer
    x = 431,273.54

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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.