Home / 817,714.38-1,226,485.29-218,736

Finding the Fourth Proportional to 817,714.38, 1,226,485.29 and 218,736

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Solution

The fourth proportional to 817,714.38, 1,226,485.29 and 218,736 is: 328,080.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,714.38 : 1,226,485.29 = 218,736 : x
  2. Step 2: Convert to fraction form
    817,714.38/1,226,485.29 = 218,736/x
  3. Step 3: Cross multiply
    817,714.38x = 1,226,485.29 × 218,736
  4. Step 4: Simplify right side
    817,714.38x = 268,276,486,393.44
  5. Step 5: Solve for x
    x = 268,276,486,393.44/817,714.38
  6. Step 6: Final answer
    x = 328,080.92

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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.