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Finding the Fourth Proportional to 613,610.91, 920,270.57 and 276,443.55

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Solution

The fourth proportional to 613,610.91, 920,270.57 and 276,443.55 is: 414,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,610.91 : 920,270.57 = 276,443.55 : x
  2. Step 2: Convert to fraction form
    613,610.91/920,270.57 = 276,443.55/x
  3. Step 3: Cross multiply
    613,610.91x = 920,270.57 × 276,443.55
  4. Step 4: Simplify right side
    613,610.91x = 254,402,861,949.11
  5. Step 5: Solve for x
    x = 254,402,861,949.11/613,610.91
  6. Step 6: Final answer
    x = 414,599.64

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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.