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Finding the Fourth Proportional to 557,774.80, 836,662.20 and 401,477.20

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Solution

The fourth proportional to 557,774.80, 836,662.20 and 401,477.20 is: 602,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,774.80 : 836,662.20 = 401,477.20 : x
  2. Step 2: Convert to fraction form
    557,774.80/836,662.20 = 401,477.20/x
  3. Step 3: Cross multiply
    557,774.80x = 836,662.20 × 401,477.20
  4. Step 4: Simplify right side
    557,774.80x = 335,900,797,401.84
  5. Step 5: Solve for x
    x = 335,900,797,401.84/557,774.80
  6. Step 6: Final answer
    x = 602,215.80

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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.