Home / 498,438.10-687,835.77-283,573.55

Finding the Fourth Proportional to 498,438.10, 687,835.77 and 283,573.55

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Solution

The fourth proportional to 498,438.10, 687,835.77 and 283,573.55 is: 391,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,438.10 : 687,835.77 = 283,573.55 : x
  2. Step 2: Convert to fraction form
    498,438.10/687,835.77 = 283,573.55/x
  3. Step 3: Cross multiply
    498,438.10x = 687,835.77 × 283,573.55
  4. Step 4: Simplify right side
    498,438.10x = 195,052,032,835.47
  5. Step 5: Solve for x
    x = 195,052,032,835.47/498,438.10
  6. Step 6: Final answer
    x = 391,326.49

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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.