Home / 856,632.72-1,285,530.30-457,560.12

Finding the Fourth Proportional to 856,632.72, 1,285,530.30 and 457,560.12

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Solution

The fourth proportional to 856,632.72, 1,285,530.30 and 457,560.12 is: 686,650.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,632.72 : 1,285,530.30 = 457,560.12 : x
  2. Step 2: Convert to fraction form
    856,632.72/1,285,530.30 = 457,560.12/x
  3. Step 3: Cross multiply
    856,632.72x = 1,285,530.30 × 457,560.12
  4. Step 4: Simplify right side
    856,632.72x = 588,207,398,331.64
  5. Step 5: Solve for x
    x = 588,207,398,331.64/856,632.72
  6. Step 6: Final answer
    x = 686,650.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.