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Finding the Fourth Proportional to 442,899.20, 618,659.20 and 442,899.20

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Solution

The fourth proportional to 442,899.20, 618,659.20 and 442,899.20 is: 618,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,899.20 : 618,659.20 = 442,899.20 : x
  2. Step 2: Convert to fraction form
    442,899.20/618,659.20 = 442,899.20/x
  3. Step 3: Cross multiply
    442,899.20x = 618,659.20 × 442,899.20
  4. Step 4: Simplify right side
    442,899.20x = 274,003,664,752.64
  5. Step 5: Solve for x
    x = 274,003,664,752.64/442,899.20
  6. Step 6: Final answer
    x = 618,659.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.