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Finding the Fourth Proportional to 496,862.56, 685,673.66 and 282,006.20

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Solution

The fourth proportional to 496,862.56, 685,673.66 and 282,006.20 is: 389,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,862.56 : 685,673.66 = 282,006.20 : x
  2. Step 2: Convert to fraction form
    496,862.56/685,673.66 = 282,006.20/x
  3. Step 3: Cross multiply
    496,862.56x = 685,673.66 × 282,006.20
  4. Step 4: Simplify right side
    496,862.56x = 193,364,223,296.69
  5. Step 5: Solve for x
    x = 193,364,223,296.69/496,862.56
  6. Step 6: Final answer
    x = 389,170.44

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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.