Home / 877,162.20-1,314,683.64-427,208.64

Finding the Fourth Proportional to 877,162.20, 1,314,683.64 and 427,208.64

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Solution

The fourth proportional to 877,162.20, 1,314,683.64 and 427,208.64 is: 640,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,162.20 : 1,314,683.64 = 427,208.64 : x
  2. Step 2: Convert to fraction form
    877,162.20/1,314,683.64 = 427,208.64/x
  3. Step 3: Cross multiply
    877,162.20x = 1,314,683.64 × 427,208.64
  4. Step 4: Simplify right side
    877,162.20x = 561,644,209,874.65
  5. Step 5: Solve for x
    x = 561,644,209,874.65/877,162.20
  6. Step 6: Final answer
    x = 640,296.87

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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.