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Finding the Fourth Proportional to 508,346.72, 701,507.52 and 281,987.36

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Solution

The fourth proportional to 508,346.72, 701,507.52 and 281,987.36 is: 389,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,346.72 : 701,507.52 = 281,987.36 : x
  2. Step 2: Convert to fraction form
    508,346.72/701,507.52 = 281,987.36/x
  3. Step 3: Cross multiply
    508,346.72x = 701,507.52 × 281,987.36
  4. Step 4: Simplify right side
    508,346.72x = 197,816,253,584.95
  5. Step 5: Solve for x
    x = 197,816,253,584.95/508,346.72
  6. Step 6: Final answer
    x = 389,136.48

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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.