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Finding the Fourth Proportional to 606,679.20, 910,018.80 and 512,200.80

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Solution

The fourth proportional to 606,679.20, 910,018.80 and 512,200.80 is: 768,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,679.20 : 910,018.80 = 512,200.80 : x
  2. Step 2: Convert to fraction form
    606,679.20/910,018.80 = 512,200.80/x
  3. Step 3: Cross multiply
    606,679.20x = 910,018.80 × 512,200.80
  4. Step 4: Simplify right side
    606,679.20x = 466,112,357,375.04
  5. Step 5: Solve for x
    x = 466,112,357,375.04/606,679.20
  6. Step 6: Final answer
    x = 768,301.20

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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.