Home / 877,163.70-1,314,685.89-427,210.14

Finding the Fourth Proportional to 877,163.70, 1,314,685.89 and 427,210.14

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Solution

The fourth proportional to 877,163.70, 1,314,685.89 and 427,210.14 is: 640,299.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,163.70 : 1,314,685.89 = 427,210.14 : x
  2. Step 2: Convert to fraction form
    877,163.70/1,314,685.89 = 427,210.14/x
  3. Step 3: Cross multiply
    877,163.70x = 1,314,685.89 × 427,210.14
  4. Step 4: Simplify right side
    877,163.70x = 561,647,143,122.93
  5. Step 5: Solve for x
    x = 561,647,143,122.93/877,163.70
  6. Step 6: Final answer
    x = 640,299.12

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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.