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Finding the Fourth Proportional to 508,642.08, 701,911.92 and 279,199.20

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Solution

The fourth proportional to 508,642.08, 701,911.92 and 279,199.20 is: 385,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,642.08 : 701,911.92 = 279,199.20 : x
  2. Step 2: Convert to fraction form
    508,642.08/701,911.92 = 279,199.20/x
  3. Step 3: Cross multiply
    508,642.08x = 701,911.92 × 279,199.20
  4. Step 4: Simplify right side
    508,642.08x = 195,973,246,534.46
  5. Step 5: Solve for x
    x = 195,973,246,534.46/508,642.08
  6. Step 6: Final answer
    x = 385,287.13

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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.