Home / 997,523.20-1,496,479.20-428,903.20

Finding the Fourth Proportional to 997,523.20, 1,496,479.20 and 428,903.20

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Solution

The fourth proportional to 997,523.20, 1,496,479.20 and 428,903.20 is: 643,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,523.20 : 1,496,479.20 = 428,903.20 : x
  2. Step 2: Convert to fraction form
    997,523.20/1,496,479.20 = 428,903.20/x
  3. Step 3: Cross multiply
    997,523.20x = 1,496,479.20 × 428,903.20
  4. Step 4: Simplify right side
    997,523.20x = 641,844,717,613.44
  5. Step 5: Solve for x
    x = 641,844,717,613.44/997,523.20
  6. Step 6: Final answer
    x = 643,438.39

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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.