Home / 491,624.29-678,506.25-276,806.35

Finding the Fourth Proportional to 491,624.29, 678,506.25 and 276,806.35

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Solution

The fourth proportional to 491,624.29, 678,506.25 and 276,806.35 is: 382,029.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,624.29 : 678,506.25 = 276,806.35 : x
  2. Step 2: Convert to fraction form
    491,624.29/678,506.25 = 276,806.35/x
  3. Step 3: Cross multiply
    491,624.29x = 678,506.25 × 276,806.35
  4. Step 4: Simplify right side
    491,624.29x = 187,814,838,514.69
  5. Step 5: Solve for x
    x = 187,814,838,514.69/491,624.29
  6. Step 6: Final answer
    x = 382,029.21

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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.