Home / 686,682.24-947,932.92-442,020.12

Finding the Fourth Proportional to 686,682.24, 947,932.92 and 442,020.12

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Solution

The fourth proportional to 686,682.24, 947,932.92 and 442,020.12 is: 610,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,682.24 : 947,932.92 = 442,020.12 : x
  2. Step 2: Convert to fraction form
    686,682.24/947,932.92 = 442,020.12/x
  3. Step 3: Cross multiply
    686,682.24x = 947,932.92 × 442,020.12
  4. Step 4: Simplify right side
    686,682.24x = 419,005,423,050.35
  5. Step 5: Solve for x
    x = 419,005,423,050.35/686,682.24
  6. Step 6: Final answer
    x = 610,188.23

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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.