Home / 817,658.34-1,226,691.63-285,187.02

Finding the Fourth Proportional to 817,658.34, 1,226,691.63 and 285,187.02

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Solution

The fourth proportional to 817,658.34, 1,226,691.63 and 285,187.02 is: 427,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,658.34 : 1,226,691.63 = 285,187.02 : x
  2. Step 2: Convert to fraction form
    817,658.34/1,226,691.63 = 285,187.02/x
  3. Step 3: Cross multiply
    817,658.34x = 1,226,691.63 × 285,187.02
  4. Step 4: Simplify right side
    817,658.34x = 349,836,530,418.64
  5. Step 5: Solve for x
    x = 349,836,530,418.64/817,658.34
  6. Step 6: Final answer
    x = 427,851.72

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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.