Home / 661,982.64-913,556.48-375,514.80

Finding the Fourth Proportional to 661,982.64, 913,556.48 and 375,514.80

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Solution

The fourth proportional to 661,982.64, 913,556.48 and 375,514.80 is: 518,222.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,982.64 : 913,556.48 = 375,514.80 : x
  2. Step 2: Convert to fraction form
    661,982.64/913,556.48 = 375,514.80/x
  3. Step 3: Cross multiply
    661,982.64x = 913,556.48 × 375,514.80
  4. Step 4: Simplify right side
    661,982.64x = 343,053,978,875.90
  5. Step 5: Solve for x
    x = 343,053,978,875.90/661,982.64
  6. Step 6: Final answer
    x = 518,222.02

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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.