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Finding the Fourth Proportional to 886,553.76, 1,330,017.48 and 287,468.24

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Solution

The fourth proportional to 886,553.76, 1,330,017.48 and 287,468.24 is: 431,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,553.76 : 1,330,017.48 = 287,468.24 : x
  2. Step 2: Convert to fraction form
    886,553.76/1,330,017.48 = 287,468.24/x
  3. Step 3: Cross multiply
    886,553.76x = 1,330,017.48 × 287,468.24
  4. Step 4: Simplify right side
    886,553.76x = 382,337,784,144.84
  5. Step 5: Solve for x
    x = 382,337,784,144.84/886,553.76
  6. Step 6: Final answer
    x = 431,262.94

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Double scale
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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.