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Finding the Fourth Proportional to 605,379.12, 906,630.12 and 304,914.48

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Solution

The fourth proportional to 605,379.12, 906,630.12 and 304,914.48 is: 456,647.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,379.12 : 906,630.12 = 304,914.48 : x
  2. Step 2: Convert to fraction form
    605,379.12/906,630.12 = 304,914.48/x
  3. Step 3: Cross multiply
    605,379.12x = 906,630.12 × 304,914.48
  4. Step 4: Simplify right side
    605,379.12x = 276,444,651,592.14
  5. Step 5: Solve for x
    x = 276,444,651,592.14/605,379.12
  6. Step 6: Final answer
    x = 456,647.15

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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.