Home / 876,421.68-1,315,007.82-277,431.60

Finding the Fourth Proportional to 876,421.68, 1,315,007.82 and 277,431.60

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Solution

The fourth proportional to 876,421.68, 1,315,007.82 and 277,431.60 is: 416,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,421.68 : 1,315,007.82 = 277,431.60 : x
  2. Step 2: Convert to fraction form
    876,421.68/1,315,007.82 = 277,431.60/x
  3. Step 3: Cross multiply
    876,421.68x = 1,315,007.82 × 277,431.60
  4. Step 4: Simplify right side
    876,421.68x = 364,824,723,515.11
  5. Step 5: Solve for x
    x = 364,824,723,515.11/876,421.68
  6. Step 6: Final answer
    x = 416,266.20

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1.5x scale

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.