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Finding the Fourth Proportional to 578,144.62, 866,718.54 and 223,407.55

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Solution

The fourth proportional to 578,144.62, 866,718.54 and 223,407.55 is: 334,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,144.62 : 866,718.54 = 223,407.55 : x
  2. Step 2: Convert to fraction form
    578,144.62/866,718.54 = 223,407.55/x
  3. Step 3: Cross multiply
    578,144.62x = 866,718.54 × 223,407.55
  4. Step 4: Simplify right side
    578,144.62x = 193,631,465,560.98
  5. Step 5: Solve for x
    x = 193,631,465,560.98/578,144.62
  6. Step 6: Final answer
    x = 334,918.74

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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.