Home / 864,458.12-1,297,600.26-485,702.53

Finding the Fourth Proportional to 864,458.12, 1,297,600.26 and 485,702.53

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Solution

The fourth proportional to 864,458.12, 1,297,600.26 and 485,702.53 is: 729,066.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,458.12 : 1,297,600.26 = 485,702.53 : x
  2. Step 2: Convert to fraction form
    864,458.12/1,297,600.26 = 485,702.53/x
  3. Step 3: Cross multiply
    864,458.12x = 1,297,600.26 × 485,702.53
  4. Step 4: Simplify right side
    864,458.12x = 630,247,724,145.27
  5. Step 5: Solve for x
    x = 630,247,724,145.27/864,458.12
  6. Step 6: Final answer
    x = 729,066.81

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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.