Home / 3,121,329.87-4,681,994.85-877,467.87

Finding the Fourth Proportional to 3,121,329.87, 4,681,994.85 and 877,467.87

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Solution

The fourth proportional to 3,121,329.87, 4,681,994.85 and 877,467.87 is: 1,316,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,329.87 : 4,681,994.85 = 877,467.87 : x
  2. Step 2: Convert to fraction form
    3,121,329.87/4,681,994.85 = 877,467.87/x
  3. Step 3: Cross multiply
    3,121,329.87x = 4,681,994.85 × 877,467.87
  4. Step 4: Simplify right side
    3,121,329.87x = 4,108,300,048,380.47
  5. Step 5: Solve for x
    x = 4,108,300,048,380.47/3,121,329.87
  6. Step 6: Final answer
    x = 1,316,201.82

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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.