Home / 498,284.63-687,632.59-271,930.13

Finding the Fourth Proportional to 498,284.63, 687,632.59 and 271,930.13

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Solution

The fourth proportional to 498,284.63, 687,632.59 and 271,930.13 is: 375,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,284.63 : 687,632.59 = 271,930.13 : x
  2. Step 2: Convert to fraction form
    498,284.63/687,632.59 = 271,930.13/x
  3. Step 3: Cross multiply
    498,284.63x = 687,632.59 × 271,930.13
  4. Step 4: Simplify right side
    498,284.63x = 186,988,019,590.94
  5. Step 5: Solve for x
    x = 186,988,019,590.94/498,284.63
  6. Step 6: Final answer
    x = 375,263.47

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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.