Home / 717,896.20-1,076,649.90-212,456.20

Finding the Fourth Proportional to 717,896.20, 1,076,649.90 and 212,456.20

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Solution

The fourth proportional to 717,896.20, 1,076,649.90 and 212,456.20 is: 318,626.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,896.20 : 1,076,649.90 = 212,456.20 : x
  2. Step 2: Convert to fraction form
    717,896.20/1,076,649.90 = 212,456.20/x
  3. Step 3: Cross multiply
    717,896.20x = 1,076,649.90 × 212,456.20
  4. Step 4: Simplify right side
    717,896.20x = 228,740,946,484.38
  5. Step 5: Solve for x
    x = 228,740,946,484.38/717,896.20
  6. Step 6: Final answer
    x = 318,626.77

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Double scale
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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.