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Finding the Fourth Proportional to 855,572.66, 1,284,620.62 and 477,232.60

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Solution

The fourth proportional to 855,572.66, 1,284,620.62 and 477,232.60 is: 716,552.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,572.66 : 1,284,620.62 = 477,232.60 : x
  2. Step 2: Convert to fraction form
    855,572.66/1,284,620.62 = 477,232.60/x
  3. Step 3: Cross multiply
    855,572.66x = 1,284,620.62 × 477,232.60
  4. Step 4: Simplify right side
    855,572.66x = 613,062,838,496.21
  5. Step 5: Solve for x
    x = 613,062,838,496.21/855,572.66
  6. Step 6: Final answer
    x = 716,552.63

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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.