Home / 817,761.64-1,226,253.98-285,217.96

Finding the Fourth Proportional to 817,761.64, 1,226,253.98 and 285,217.96

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Solution

The fourth proportional to 817,761.64, 1,226,253.98 and 285,217.96 is: 427,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,761.64 : 1,226,253.98 = 285,217.96 : x
  2. Step 2: Convert to fraction form
    817,761.64/1,226,253.98 = 285,217.96/x
  3. Step 3: Cross multiply
    817,761.64x = 1,226,253.98 × 285,217.96
  4. Step 4: Simplify right side
    817,761.64x = 349,749,658,617.48
  5. Step 5: Solve for x
    x = 349,749,658,617.48/817,761.64
  6. Step 6: Final answer
    x = 427,691.45

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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.