Home / 498,171.36-687,491.64-283,342.35

Finding the Fourth Proportional to 498,171.36, 687,491.64 and 283,342.35

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Solution

The fourth proportional to 498,171.36, 687,491.64 and 283,342.35 is: 391,021.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,171.36 : 687,491.64 = 283,342.35 : x
  2. Step 2: Convert to fraction form
    498,171.36/687,491.64 = 283,342.35/x
  3. Step 3: Cross multiply
    498,171.36x = 687,491.64 × 283,342.35
  4. Step 4: Simplify right side
    498,171.36x = 194,795,496,882.95
  5. Step 5: Solve for x
    x = 194,795,496,882.95/498,171.36
  6. Step 6: Final answer
    x = 391,021.07

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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.