Home / 825,650.40-1,237,309.20-509,167.20

Finding the Fourth Proportional to 825,650.40, 1,237,309.20 and 509,167.20

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Solution

The fourth proportional to 825,650.40, 1,237,309.20 and 509,167.20 is: 763,031.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,650.40 : 1,237,309.20 = 509,167.20 : x
  2. Step 2: Convert to fraction form
    825,650.40/1,237,309.20 = 509,167.20/x
  3. Step 3: Cross multiply
    825,650.40x = 1,237,309.20 × 509,167.20
  4. Step 4: Simplify right side
    825,650.40x = 629,997,260,898.24
  5. Step 5: Solve for x
    x = 629,997,260,898.24/825,650.40
  6. Step 6: Final answer
    x = 763,031.50

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Double scale
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Similar ratio
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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.