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Finding the Fourth Proportional to 450,448.32, 621,514.26 and 269,218.92

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Solution

The fourth proportional to 450,448.32, 621,514.26 and 269,218.92 is: 371,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,448.32 : 621,514.26 = 269,218.92 : x
  2. Step 2: Convert to fraction form
    450,448.32/621,514.26 = 269,218.92/x
  3. Step 3: Cross multiply
    450,448.32x = 621,514.26 × 269,218.92
  4. Step 4: Simplify right side
    450,448.32x = 167,323,397,841.80
  5. Step 5: Solve for x
    x = 167,323,397,841.80/450,448.32
  6. Step 6: Final answer
    x = 371,459.70

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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.