Home / 691,271.76-1,035,317.88-576,912.72

Finding the Fourth Proportional to 691,271.76, 1,035,317.88 and 576,912.72

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Solution

The fourth proportional to 691,271.76, 1,035,317.88 and 576,912.72 is: 864,042.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,271.76 : 1,035,317.88 = 576,912.72 : x
  2. Step 2: Convert to fraction form
    691,271.76/1,035,317.88 = 576,912.72/x
  3. Step 3: Cross multiply
    691,271.76x = 1,035,317.88 × 576,912.72
  4. Step 4: Simplify right side
    691,271.76x = 597,288,054,215.43
  5. Step 5: Solve for x
    x = 597,288,054,215.43/691,271.76
  6. Step 6: Final answer
    x = 864,042.32

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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.