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Finding the Fourth Proportional to 642,109.20, 962,472.60 and 242,595.60

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Solution

The fourth proportional to 642,109.20, 962,472.60 and 242,595.60 is: 363,632.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,109.20 : 962,472.60 = 242,595.60 : x
  2. Step 2: Convert to fraction form
    642,109.20/962,472.60 = 242,595.60/x
  3. Step 3: Cross multiply
    642,109.20x = 962,472.60 × 242,595.60
  4. Step 4: Simplify right side
    642,109.20x = 233,491,617,880.56
  5. Step 5: Solve for x
    x = 233,491,617,880.56/642,109.20
  6. Step 6: Final answer
    x = 363,632.26

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1.5x scale

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.