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Finding the Fourth Proportional to 560,847.20, 773,982.40 and 306,200.20

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Solution

The fourth proportional to 560,847.20, 773,982.40 and 306,200.20 is: 422,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,847.20 : 773,982.40 = 306,200.20 : x
  2. Step 2: Convert to fraction form
    560,847.20/773,982.40 = 306,200.20/x
  3. Step 3: Cross multiply
    560,847.20x = 773,982.40 × 306,200.20
  4. Step 4: Simplify right side
    560,847.20x = 236,993,565,676.48
  5. Step 5: Solve for x
    x = 236,993,565,676.48/560,847.20
  6. Step 6: Final answer
    x = 422,563.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.