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Finding the Fourth Proportional to 676,288, 933,270.76 and 366,189.12

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Solution

The fourth proportional to 676,288, 933,270.76 and 366,189.12 is: 505,337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,288 : 933,270.76 = 366,189.12 : x
  2. Step 2: Convert to fraction form
    676,288/933,270.76 = 366,189.12/x
  3. Step 3: Cross multiply
    676,288x = 933,270.76 × 366,189.12
  4. Step 4: Simplify right side
    676,288x = 341,753,598,326.13
  5. Step 5: Solve for x
    x = 341,753,598,326.13/676,288
  6. Step 6: Final answer
    x = 505,337.37

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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.