Home / 427,738.60-641,607.90-295,028.20

Finding the Fourth Proportional to 427,738.60, 641,607.90 and 295,028.20

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Solution

The fourth proportional to 427,738.60, 641,607.90 and 295,028.20 is: 442,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,738.60 : 641,607.90 = 295,028.20 : x
  2. Step 2: Convert to fraction form
    427,738.60/641,607.90 = 295,028.20/x
  3. Step 3: Cross multiply
    427,738.60x = 641,607.90 × 295,028.20
  4. Step 4: Simplify right side
    427,738.60x = 189,292,423,842.78
  5. Step 5: Solve for x
    x = 189,292,423,842.78/427,738.60
  6. Step 6: Final answer
    x = 442,542.30

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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.