Home / 491,032.32-677,644.80-276,182.40

Finding the Fourth Proportional to 491,032.32, 677,644.80 and 276,182.40

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Solution

The fourth proportional to 491,032.32, 677,644.80 and 276,182.40 is: 381,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,032.32 : 677,644.80 = 276,182.40 : x
  2. Step 2: Convert to fraction form
    491,032.32/677,644.80 = 276,182.40/x
  3. Step 3: Cross multiply
    491,032.32x = 677,644.80 × 276,182.40
  4. Step 4: Simplify right side
    491,032.32x = 187,153,567,211.52
  5. Step 5: Solve for x
    x = 187,153,567,211.52/491,032.32
  6. Step 6: Final answer
    x = 381,143.07

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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.