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Finding the Fourth Proportional to 472,449.58, 651,979.84 and 257,589.60

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Solution

The fourth proportional to 472,449.58, 651,979.84 and 257,589.60 is: 355,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,449.58 : 651,979.84 = 257,589.60 : x
  2. Step 2: Convert to fraction form
    472,449.58/651,979.84 = 257,589.60/x
  3. Step 3: Cross multiply
    472,449.58x = 651,979.84 × 257,589.60
  4. Step 4: Simplify right side
    472,449.58x = 167,943,226,193.66
  5. Step 5: Solve for x
    x = 167,943,226,193.66/472,449.58
  6. Step 6: Final answer
    x = 355,473.33

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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.