Home / 755,636.40-1,042,514.46-428,910.48

Finding the Fourth Proportional to 755,636.40, 1,042,514.46 and 428,910.48

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Solution

The fourth proportional to 755,636.40, 1,042,514.46 and 428,910.48 is: 591,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,636.40 : 1,042,514.46 = 428,910.48 : x
  2. Step 2: Convert to fraction form
    755,636.40/1,042,514.46 = 428,910.48/x
  3. Step 3: Cross multiply
    755,636.40x = 1,042,514.46 × 428,910.48
  4. Step 4: Simplify right side
    755,636.40x = 447,145,377,445.54
  5. Step 5: Solve for x
    x = 447,145,377,445.54/755,636.40
  6. Step 6: Final answer
    x = 591,746.74

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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.