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Finding the Fourth Proportional to 665,460.56, 998,273.57 and 260,600.49

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Solution

The fourth proportional to 665,460.56, 998,273.57 and 260,600.49 is: 390,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,460.56 : 998,273.57 = 260,600.49 : x
  2. Step 2: Convert to fraction form
    665,460.56/998,273.57 = 260,600.49/x
  3. Step 3: Cross multiply
    665,460.56x = 998,273.57 × 260,600.49
  4. Step 4: Simplify right side
    665,460.56x = 260,150,580,193.05
  5. Step 5: Solve for x
    x = 260,150,580,193.05/665,460.56
  6. Step 6: Final answer
    x = 390,933.13

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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.