Home / 669,076.80-1,002,254.40-415,579.20

Finding the Fourth Proportional to 669,076.80, 1,002,254.40 and 415,579.20

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Solution

The fourth proportional to 669,076.80, 1,002,254.40 and 415,579.20 is: 622,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,076.80 : 1,002,254.40 = 415,579.20 : x
  2. Step 2: Convert to fraction form
    669,076.80/1,002,254.40 = 415,579.20/x
  3. Step 3: Cross multiply
    669,076.80x = 1,002,254.40 × 415,579.20
  4. Step 4: Simplify right side
    669,076.80x = 416,516,081,748.48
  5. Step 5: Solve for x
    x = 416,516,081,748.48/669,076.80
  6. Step 6: Final answer
    x = 622,523.58

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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.