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Finding the Fourth Proportional to 433,376.10, 650,064.15 and 328,400.10

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Solution

The fourth proportional to 433,376.10, 650,064.15 and 328,400.10 is: 492,600.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,376.10 : 650,064.15 = 328,400.10 : x
  2. Step 2: Convert to fraction form
    433,376.10/650,064.15 = 328,400.10/x
  3. Step 3: Cross multiply
    433,376.10x = 650,064.15 × 328,400.10
  4. Step 4: Simplify right side
    433,376.10x = 213,481,131,866.42
  5. Step 5: Solve for x
    x = 213,481,131,866.42/433,376.10
  6. Step 6: Final answer
    x = 492,600.15

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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.