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Finding the Fourth Proportional to 1,295,248.86, 1,787,451.24 and 722,325.30

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Solution

The fourth proportional to 1,295,248.86, 1,787,451.24 and 722,325.30 is: 996,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,248.86 : 1,787,451.24 = 722,325.30 : x
  2. Step 2: Convert to fraction form
    1,295,248.86/1,787,451.24 = 722,325.30/x
  3. Step 3: Cross multiply
    1,295,248.86x = 1,787,451.24 × 722,325.30
  4. Step 4: Simplify right side
    1,295,248.86x = 1,291,121,253,168.37
  5. Step 5: Solve for x
    x = 1,291,121,253,168.37/1,295,248.86
  6. Step 6: Final answer
    x = 996,813.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.