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Finding the Fourth Proportional to 735,008.80, 1,102,642.80 and 261,968.80

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Solution

The fourth proportional to 735,008.80, 1,102,642.80 and 261,968.80 is: 392,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,008.80 : 1,102,642.80 = 261,968.80 : x
  2. Step 2: Convert to fraction form
    735,008.80/1,102,642.80 = 261,968.80/x
  3. Step 3: Cross multiply
    735,008.80x = 1,102,642.80 × 261,968.80
  4. Step 4: Simplify right side
    735,008.80x = 288,858,011,144.64
  5. Step 5: Solve for x
    x = 288,858,011,144.64/735,008.80
  6. Step 6: Final answer
    x = 392,999.39

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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.