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Finding the Fourth Proportional to 650,173.69, 897,420.02 and 378,294.10

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Solution

The fourth proportional to 650,173.69, 897,420.02 and 378,294.10 is: 522,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,173.69 : 897,420.02 = 378,294.10 : x
  2. Step 2: Convert to fraction form
    650,173.69/897,420.02 = 378,294.10/x
  3. Step 3: Cross multiply
    650,173.69x = 897,420.02 × 378,294.10
  4. Step 4: Simplify right side
    650,173.69x = 339,488,700,597.84
  5. Step 5: Solve for x
    x = 339,488,700,597.84/650,173.69
  6. Step 6: Final answer
    x = 522,150.79

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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.