Home / 699,684.48-1,049,708.16-300,257.28

Finding the Fourth Proportional to 699,684.48, 1,049,708.16 and 300,257.28

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Solution

The fourth proportional to 699,684.48, 1,049,708.16 and 300,257.28 is: 450,463.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,684.48 : 1,049,708.16 = 300,257.28 : x
  2. Step 2: Convert to fraction form
    699,684.48/1,049,708.16 = 300,257.28/x
  3. Step 3: Cross multiply
    699,684.48x = 1,049,708.16 × 300,257.28
  4. Step 4: Simplify right side
    699,684.48x = 315,182,516,915.41
  5. Step 5: Solve for x
    x = 315,182,516,915.41/699,684.48
  6. Step 6: Final answer
    x = 450,463.78

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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.