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Finding the Fourth Proportional to 406,409.92, 560,498.16 and 245,230.72

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Solution

The fourth proportional to 406,409.92, 560,498.16 and 245,230.72 is: 338,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,409.92 : 560,498.16 = 245,230.72 : x
  2. Step 2: Convert to fraction form
    406,409.92/560,498.16 = 245,230.72/x
  3. Step 3: Cross multiply
    406,409.92x = 560,498.16 × 245,230.72
  4. Step 4: Simplify right side
    406,409.92x = 137,451,367,335.48
  5. Step 5: Solve for x
    x = 137,451,367,335.48/406,409.92
  6. Step 6: Final answer
    x = 338,208.69

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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.