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Finding the Fourth Proportional to 750,367, 1,035,605.34 and 428,003.32

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Solution

The fourth proportional to 750,367, 1,035,605.34 and 428,003.32 is: 590,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,367 : 1,035,605.34 = 428,003.32 : x
  2. Step 2: Convert to fraction form
    750,367/1,035,605.34 = 428,003.32/x
  3. Step 3: Cross multiply
    750,367x = 1,035,605.34 × 428,003.32
  4. Step 4: Simplify right side
    750,367x = 443,242,523,729.73
  5. Step 5: Solve for x
    x = 443,242,523,729.73/750,367
  6. Step 6: Final answer
    x = 590,700.98

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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.