Home / 755,514.30-1,042,648.02-428,850.21

Finding the Fourth Proportional to 755,514.30, 1,042,648.02 and 428,850.21

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Solution

The fourth proportional to 755,514.30, 1,042,648.02 and 428,850.21 is: 591,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,514.30 : 1,042,648.02 = 428,850.21 : x
  2. Step 2: Convert to fraction form
    755,514.30/1,042,648.02 = 428,850.21/x
  3. Step 3: Cross multiply
    755,514.30x = 1,042,648.02 × 428,850.21
  4. Step 4: Simplify right side
    755,514.30x = 447,139,822,333.08
  5. Step 5: Solve for x
    x = 447,139,822,333.08/755,514.30
  6. Step 6: Final answer
    x = 591,835.02

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Double scale
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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.