Home / 805,617.60-1,207,658.40-300,043.20

Finding the Fourth Proportional to 805,617.60, 1,207,658.40 and 300,043.20

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Solution

The fourth proportional to 805,617.60, 1,207,658.40 and 300,043.20 is: 449,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,617.60 : 1,207,658.40 = 300,043.20 : x
  2. Step 2: Convert to fraction form
    805,617.60/1,207,658.40 = 300,043.20/x
  3. Step 3: Cross multiply
    805,617.60x = 1,207,658.40 × 300,043.20
  4. Step 4: Simplify right side
    805,617.60x = 362,349,690,842.88
  5. Step 5: Solve for x
    x = 362,349,690,842.88/805,617.60
  6. Step 6: Final answer
    x = 449,778.77

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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.