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Finding the Fourth Proportional to 997,658.17, 1,496,708.70 and 287,630.80

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Solution

The fourth proportional to 997,658.17, 1,496,708.70 and 287,630.80 is: 431,510.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,658.17 : 1,496,708.70 = 287,630.80 : x
  2. Step 2: Convert to fraction form
    997,658.17/1,496,708.70 = 287,630.80/x
  3. Step 3: Cross multiply
    997,658.17x = 1,496,708.70 × 287,630.80
  4. Step 4: Simplify right side
    997,658.17x = 430,499,520,747.96
  5. Step 5: Solve for x
    x = 430,499,520,747.96/997,658.17
  6. Step 6: Final answer
    x = 431,510.04

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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.