Home / 487,970.28-673,245.54-273,076.20

Finding the Fourth Proportional to 487,970.28, 673,245.54 and 273,076.20

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Solution

The fourth proportional to 487,970.28, 673,245.54 and 273,076.20 is: 376,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,970.28 : 673,245.54 = 273,076.20 : x
  2. Step 2: Convert to fraction form
    487,970.28/673,245.54 = 273,076.20/x
  3. Step 3: Cross multiply
    487,970.28x = 673,245.54 × 273,076.20
  4. Step 4: Simplify right side
    487,970.28x = 183,847,333,730.15
  5. Step 5: Solve for x
    x = 183,847,333,730.15/487,970.28
  6. Step 6: Final answer
    x = 376,759.28

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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.