Home / 873,617.76-1,205,393.04-491,505.12

Finding the Fourth Proportional to 873,617.76, 1,205,393.04 and 491,505.12

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Solution

The fourth proportional to 873,617.76, 1,205,393.04 and 491,505.12 is: 678,164.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,617.76 : 1,205,393.04 = 491,505.12 : x
  2. Step 2: Convert to fraction form
    873,617.76/1,205,393.04 = 491,505.12/x
  3. Step 3: Cross multiply
    873,617.76x = 1,205,393.04 × 491,505.12
  4. Step 4: Simplify right side
    873,617.76x = 592,456,844,745.40
  5. Step 5: Solve for x
    x = 592,456,844,745.40/873,617.76
  6. Step 6: Final answer
    x = 678,164.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.