Home / 453,984.48-680,974.89-138,440.47

Finding the Fourth Proportional to 453,984.48, 680,974.89 and 138,440.47

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Solution

The fourth proportional to 453,984.48, 680,974.89 and 138,440.47 is: 207,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,984.48 : 680,974.89 = 138,440.47 : x
  2. Step 2: Convert to fraction form
    453,984.48/680,974.89 = 138,440.47/x
  3. Step 3: Cross multiply
    453,984.48x = 680,974.89 × 138,440.47
  4. Step 4: Simplify right side
    453,984.48x = 94,274,483,829.80
  5. Step 5: Solve for x
    x = 94,274,483,829.80/453,984.48
  6. Step 6: Final answer
    x = 207,660.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.