Home / 498,866.82-688,437.12-272,512.32

Finding the Fourth Proportional to 498,866.82, 688,437.12 and 272,512.32

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Solution

The fourth proportional to 498,866.82, 688,437.12 and 272,512.32 is: 376,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,866.82 : 688,437.12 = 272,512.32 : x
  2. Step 2: Convert to fraction form
    498,866.82/688,437.12 = 272,512.32/x
  3. Step 3: Cross multiply
    498,866.82x = 688,437.12 × 272,512.32
  4. Step 4: Simplify right side
    498,866.82x = 187,607,596,745.32
  5. Step 5: Solve for x
    x = 187,607,596,745.32/498,866.82
  6. Step 6: Final answer
    x = 376,067.50

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1.5x scale

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.