Home / 855,575.80-1,284,625.32-477,235.76

Finding the Fourth Proportional to 855,575.80, 1,284,625.32 and 477,235.76

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Solution

The fourth proportional to 855,575.80, 1,284,625.32 and 477,235.76 is: 716,557.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,575.80 : 1,284,625.32 = 477,235.76 : x
  2. Step 2: Convert to fraction form
    855,575.80/1,284,625.32 = 477,235.76/x
  3. Step 3: Cross multiply
    855,575.80x = 1,284,625.32 × 477,235.76
  4. Step 4: Simplify right side
    855,575.80x = 613,069,140,905.44
  5. Step 5: Solve for x
    x = 613,069,140,905.44/855,575.80
  6. Step 6: Final answer
    x = 716,557.37

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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.