Home / 717,623.20-1,076,240.40-212,183.20

Finding the Fourth Proportional to 717,623.20, 1,076,240.40 and 212,183.20

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Solution

The fourth proportional to 717,623.20, 1,076,240.40 and 212,183.20 is: 318,217.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,623.20 : 1,076,240.40 = 212,183.20 : x
  2. Step 2: Convert to fraction form
    717,623.20/1,076,240.40 = 212,183.20/x
  3. Step 3: Cross multiply
    717,623.20x = 1,076,240.40 × 212,183.20
  4. Step 4: Simplify right side
    717,623.20x = 228,360,132,041.28
  5. Step 5: Solve for x
    x = 228,360,132,041.28/717,623.20
  6. Step 6: Final answer
    x = 318,217.32

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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.