Home / 499,288.88-689,018.66-272,934.38

Finding the Fourth Proportional to 499,288.88, 689,018.66 and 272,934.38

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Solution

The fourth proportional to 499,288.88, 689,018.66 and 272,934.38 is: 376,649.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,288.88 : 689,018.66 = 272,934.38 : x
  2. Step 2: Convert to fraction form
    499,288.88/689,018.66 = 272,934.38/x
  3. Step 3: Cross multiply
    499,288.88x = 689,018.66 × 272,934.38
  4. Step 4: Simplify right side
    499,288.88x = 188,056,875,965.77
  5. Step 5: Solve for x
    x = 188,056,875,965.77/499,288.88
  6. Step 6: Final answer
    x = 376,649.44

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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.