Home / 817,707.63-1,226,475.18-218,729.24

Finding the Fourth Proportional to 817,707.63, 1,226,475.18 and 218,729.24

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Solution

The fourth proportional to 817,707.63, 1,226,475.18 and 218,729.24 is: 328,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,707.63 : 1,226,475.18 = 218,729.24 : x
  2. Step 2: Convert to fraction form
    817,707.63/1,226,475.18 = 218,729.24/x
  3. Step 3: Cross multiply
    817,707.63x = 1,226,475.18 × 218,729.24
  4. Step 4: Simplify right side
    817,707.63x = 268,265,977,867.89
  5. Step 5: Solve for x
    x = 268,265,977,867.89/817,707.63
  6. Step 6: Final answer
    x = 328,070.78

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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.