Home / 498,971.25-688,580.33-272,618.37

Finding the Fourth Proportional to 498,971.25, 688,580.33 and 272,618.37

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Solution

The fourth proportional to 498,971.25, 688,580.33 and 272,618.37 is: 376,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,971.25 : 688,580.33 = 272,618.37 : x
  2. Step 2: Convert to fraction form
    498,971.25/688,580.33 = 272,618.37/x
  3. Step 3: Cross multiply
    498,971.25x = 688,580.33 × 272,618.37
  4. Step 4: Simplify right side
    498,971.25x = 187,719,645,815.57
  5. Step 5: Solve for x
    x = 187,719,645,815.57/498,971.25
  6. Step 6: Final answer
    x = 376,213.35

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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.