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Finding the Fourth Proportional to 338,454.05, 466,797.54 and 287,635.01

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Solution

The fourth proportional to 338,454.05, 466,797.54 and 287,635.01 is: 396,707.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,454.05 : 466,797.54 = 287,635.01 : x
  2. Step 2: Convert to fraction form
    338,454.05/466,797.54 = 287,635.01/x
  3. Step 3: Cross multiply
    338,454.05x = 466,797.54 × 287,635.01
  4. Step 4: Simplify right side
    338,454.05x = 134,267,312,751.89
  5. Step 5: Solve for x
    x = 134,267,312,751.89/338,454.05
  6. Step 6: Final answer
    x = 396,707.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.