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Finding the Fourth Proportional to 508,447.26, 701,670.24 and 279,014.40

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Solution

The fourth proportional to 508,447.26, 701,670.24 and 279,014.40 is: 385,047.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,447.26 : 701,670.24 = 279,014.40 : x
  2. Step 2: Convert to fraction form
    508,447.26/701,670.24 = 279,014.40/x
  3. Step 3: Cross multiply
    508,447.26x = 701,670.24 × 279,014.40
  4. Step 4: Simplify right side
    508,447.26x = 195,776,101,011.46
  5. Step 5: Solve for x
    x = 195,776,101,011.46/508,447.26
  6. Step 6: Final answer
    x = 385,047.02

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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.