Home / 876,821.86-1,315,283.82-245,784.88

Finding the Fourth Proportional to 876,821.86, 1,315,283.82 and 245,784.88

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Solution

The fourth proportional to 876,821.86, 1,315,283.82 and 245,784.88 is: 368,691.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,821.86 : 1,315,283.82 = 245,784.88 : x
  2. Step 2: Convert to fraction form
    876,821.86/1,315,283.82 = 245,784.88/x
  3. Step 3: Cross multiply
    876,821.86x = 1,315,283.82 × 245,784.88
  4. Step 4: Simplify right side
    876,821.86x = 323,276,874,635.72
  5. Step 5: Solve for x
    x = 323,276,874,635.72/876,821.86
  6. Step 6: Final answer
    x = 368,691.62

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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.