Home / 817,715.64-1,226,487.18-218,737.26

Finding the Fourth Proportional to 817,715.64, 1,226,487.18 and 218,737.26

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Solution

The fourth proportional to 817,715.64, 1,226,487.18 and 218,737.26 is: 328,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,715.64 : 1,226,487.18 = 218,737.26 : x
  2. Step 2: Convert to fraction form
    817,715.64/1,226,487.18 = 218,737.26/x
  3. Step 3: Cross multiply
    817,715.64x = 1,226,487.18 × 218,737.26
  4. Step 4: Simplify right side
    817,715.64x = 268,278,445,178.33
  5. Step 5: Solve for x
    x = 268,278,445,178.33/817,715.64
  6. Step 6: Final answer
    x = 328,082.81

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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.