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Finding the Fourth Proportional to 404,311.20, 606,466.80 and 384,628.20

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Solution

The fourth proportional to 404,311.20, 606,466.80 and 384,628.20 is: 576,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,311.20 : 606,466.80 = 384,628.20 : x
  2. Step 2: Convert to fraction form
    404,311.20/606,466.80 = 384,628.20/x
  3. Step 3: Cross multiply
    404,311.20x = 606,466.80 × 384,628.20
  4. Step 4: Simplify right side
    404,311.20x = 233,264,233,643.76
  5. Step 5: Solve for x
    x = 233,264,233,643.76/404,311.20
  6. Step 6: Final answer
    x = 576,942.30

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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.