Home / 876,986.64-1,315,489.86-308,384.64

Finding the Fourth Proportional to 876,986.64, 1,315,489.86 and 308,384.64

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Solution

The fourth proportional to 876,986.64, 1,315,489.86 and 308,384.64 is: 462,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,986.64 : 1,315,489.86 = 308,384.64 : x
  2. Step 2: Convert to fraction form
    876,986.64/1,315,489.86 = 308,384.64/x
  3. Step 3: Cross multiply
    876,986.64x = 1,315,489.86 × 308,384.64
  4. Step 4: Simplify right side
    876,986.64x = 405,676,866,899.75
  5. Step 5: Solve for x
    x = 405,676,866,899.75/876,986.64
  6. Step 6: Final answer
    x = 462,580.44

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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.