Home / 817,439.91-1,226,166.75-284,959.95

Finding the Fourth Proportional to 817,439.91, 1,226,166.75 and 284,959.95

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Solution

The fourth proportional to 817,439.91, 1,226,166.75 and 284,959.95 is: 427,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,439.91 : 1,226,166.75 = 284,959.95 : x
  2. Step 2: Convert to fraction form
    817,439.91/1,226,166.75 = 284,959.95/x
  3. Step 3: Cross multiply
    817,439.91x = 1,226,166.75 × 284,959.95
  4. Step 4: Simplify right side
    817,439.91x = 349,408,415,771.66
  5. Step 5: Solve for x
    x = 349,408,415,771.66/817,439.91
  6. Step 6: Final answer
    x = 427,442.33

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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.