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Finding the Fourth Proportional to 545,003.44, 817,505.46 and 260,626.82

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Solution

The fourth proportional to 545,003.44, 817,505.46 and 260,626.82 is: 390,940.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,003.44 : 817,505.46 = 260,626.82 : x
  2. Step 2: Convert to fraction form
    545,003.44/817,505.46 = 260,626.82/x
  3. Step 3: Cross multiply
    545,003.44x = 817,505.46 × 260,626.82
  4. Step 4: Simplify right side
    545,003.44x = 213,063,844,284.91
  5. Step 5: Solve for x
    x = 213,063,844,284.91/545,003.44
  6. Step 6: Final answer
    x = 390,940.37

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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.