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Finding the Fourth Proportional to 834,607.80, 1,251,838.80 and 273,642.30

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Solution

The fourth proportional to 834,607.80, 1,251,838.80 and 273,642.30 is: 410,439.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,607.80 : 1,251,838.80 = 273,642.30 : x
  2. Step 2: Convert to fraction form
    834,607.80/1,251,838.80 = 273,642.30/x
  3. Step 3: Cross multiply
    834,607.80x = 1,251,838.80 × 273,642.30
  4. Step 4: Simplify right side
    834,607.80x = 342,556,048,461.24
  5. Step 5: Solve for x
    x = 342,556,048,461.24/834,607.80
  6. Step 6: Final answer
    x = 410,439.55

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1.5x scale

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.