Home / 498,612.68-688,085.46-272,258.36

Finding the Fourth Proportional to 498,612.68, 688,085.46 and 272,258.36

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Solution

The fourth proportional to 498,612.68, 688,085.46 and 272,258.36 is: 375,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,612.68 : 688,085.46 = 272,258.36 : x
  2. Step 2: Convert to fraction form
    498,612.68/688,085.46 = 272,258.36/x
  3. Step 3: Cross multiply
    498,612.68x = 688,085.46 × 272,258.36
  4. Step 4: Simplify right side
    498,612.68x = 187,337,018,879.45
  5. Step 5: Solve for x
    x = 187,337,018,879.45/498,612.68
  6. Step 6: Final answer
    x = 375,716.52

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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.