Home / 379,481.03-523,756.91-243,686.55

Finding the Fourth Proportional to 379,481.03, 523,756.91 and 243,686.55

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Solution

The fourth proportional to 379,481.03, 523,756.91 and 243,686.55 is: 336,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,481.03 : 523,756.91 = 243,686.55 : x
  2. Step 2: Convert to fraction form
    379,481.03/523,756.91 = 243,686.55/x
  3. Step 3: Cross multiply
    379,481.03x = 523,756.91 × 243,686.55
  4. Step 4: Simplify right side
    379,481.03x = 127,632,513,218.13
  5. Step 5: Solve for x
    x = 127,632,513,218.13/379,481.03
  6. Step 6: Final answer
    x = 336,334.37

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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.