Home / 817,480.35-1,226,333.52-218,461.05

Finding the Fourth Proportional to 817,480.35, 1,226,333.52 and 218,461.05

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Solution

The fourth proportional to 817,480.35, 1,226,333.52 and 218,461.05 is: 327,721.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,480.35 : 1,226,333.52 = 218,461.05 : x
  2. Step 2: Convert to fraction form
    817,480.35/1,226,333.52 = 218,461.05/x
  3. Step 3: Cross multiply
    817,480.35x = 1,226,333.52 × 218,461.05
  4. Step 4: Simplify right side
    817,480.35x = 267,906,108,429.40
  5. Step 5: Solve for x
    x = 267,906,108,429.40/817,480.35
  6. Step 6: Final answer
    x = 327,721.77

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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.