Home / 498,738.56-688,228.80-272,370.56

Finding the Fourth Proportional to 498,738.56, 688,228.80 and 272,370.56

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Solution

The fourth proportional to 498,738.56, 688,228.80 and 272,370.56 is: 375,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,738.56 : 688,228.80 = 272,370.56 : x
  2. Step 2: Convert to fraction form
    498,738.56/688,228.80 = 272,370.56/x
  3. Step 3: Cross multiply
    498,738.56x = 688,228.80 × 272,370.56
  4. Step 4: Simplify right side
    498,738.56x = 187,453,263,664.13
  5. Step 5: Solve for x
    x = 187,453,263,664.13/498,738.56
  6. Step 6: Final answer
    x = 375,854.76

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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.