Home / 877,163.20-1,314,685.14-427,209.64

Finding the Fourth Proportional to 877,163.20, 1,314,685.14 and 427,209.64

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Solution

The fourth proportional to 877,163.20, 1,314,685.14 and 427,209.64 is: 640,298.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,163.20 : 1,314,685.14 = 427,209.64 : x
  2. Step 2: Convert to fraction form
    877,163.20/1,314,685.14 = 427,209.64/x
  3. Step 3: Cross multiply
    877,163.20x = 1,314,685.14 × 427,209.64
  4. Step 4: Simplify right side
    877,163.20x = 561,646,165,372.75
  5. Step 5: Solve for x
    x = 561,646,165,372.75/877,163.20
  6. Step 6: Final answer
    x = 640,298.37

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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.