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Finding the Fourth Proportional to 696,341, 960,989.46 and 394,632.20

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Solution

The fourth proportional to 696,341, 960,989.46 and 394,632.20 is: 544,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,341 : 960,989.46 = 394,632.20 : x
  2. Step 2: Convert to fraction form
    696,341/960,989.46 = 394,632.20/x
  3. Step 3: Cross multiply
    696,341x = 960,989.46 × 394,632.20
  4. Step 4: Simplify right side
    696,341x = 379,237,384,776.61
  5. Step 5: Solve for x
    x = 379,237,384,776.61/696,341
  6. Step 6: Final answer
    x = 544,614.47

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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.