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Finding the Fourth Proportional to 603,345.30, 905,017.95 and 229,319.70

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Solution

The fourth proportional to 603,345.30, 905,017.95 and 229,319.70 is: 343,979.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,345.30 : 905,017.95 = 229,319.70 : x
  2. Step 2: Convert to fraction form
    603,345.30/905,017.95 = 229,319.70/x
  3. Step 3: Cross multiply
    603,345.30x = 905,017.95 × 229,319.70
  4. Step 4: Simplify right side
    603,345.30x = 207,538,444,788.62
  5. Step 5: Solve for x
    x = 207,538,444,788.62/603,345.30
  6. Step 6: Final answer
    x = 343,979.55

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Similar ratio
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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.