Home / 491,256.90-677,886.17-276,392.25

Finding the Fourth Proportional to 491,256.90, 677,886.17 and 276,392.25

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Solution

The fourth proportional to 491,256.90, 677,886.17 and 276,392.25 is: 381,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,256.90 : 677,886.17 = 276,392.25 : x
  2. Step 2: Convert to fraction form
    491,256.90/677,886.17 = 276,392.25/x
  3. Step 3: Cross multiply
    491,256.90x = 677,886.17 × 276,392.25
  4. Step 4: Simplify right side
    491,256.90x = 187,362,482,388.22
  5. Step 5: Solve for x
    x = 187,362,482,388.22/491,256.90
  6. Step 6: Final answer
    x = 381,394.10

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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.