Home / 817,760.64-1,226,252.48-285,216.96

Finding the Fourth Proportional to 817,760.64, 1,226,252.48 and 285,216.96

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Solution

The fourth proportional to 817,760.64, 1,226,252.48 and 285,216.96 is: 427,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,760.64 : 1,226,252.48 = 285,216.96 : x
  2. Step 2: Convert to fraction form
    817,760.64/1,226,252.48 = 285,216.96/x
  3. Step 3: Cross multiply
    817,760.64x = 1,226,252.48 × 285,216.96
  4. Step 4: Simplify right side
    817,760.64x = 349,748,004,538.06
  5. Step 5: Solve for x
    x = 349,748,004,538.06/817,760.64
  6. Step 6: Final answer
    x = 427,689.95

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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.