Home / 717,705.05-1,076,786.19-212,269.10

Finding the Fourth Proportional to 717,705.05, 1,076,786.19 and 212,269.10

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Solution

The fourth proportional to 717,705.05, 1,076,786.19 and 212,269.10 is: 318,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,705.05 : 1,076,786.19 = 212,269.10 : x
  2. Step 2: Convert to fraction form
    717,705.05/1,076,786.19 = 212,269.10/x
  3. Step 3: Cross multiply
    717,705.05x = 1,076,786.19 × 212,269.10
  4. Step 4: Simplify right side
    717,705.05x = 228,568,430,059.80
  5. Step 5: Solve for x
    x = 228,568,430,059.80/717,705.05
  6. Step 6: Final answer
    x = 318,471.26

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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.