Home / 607,979.62-912,153.96-323,621.78

Finding the Fourth Proportional to 607,979.62, 912,153.96 and 323,621.78

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Solution

The fourth proportional to 607,979.62, 912,153.96 and 323,621.78 is: 485,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,979.62 : 912,153.96 = 323,621.78 : x
  2. Step 2: Convert to fraction form
    607,979.62/912,153.96 = 323,621.78/x
  3. Step 3: Cross multiply
    607,979.62x = 912,153.96 × 323,621.78
  4. Step 4: Simplify right side
    607,979.62x = 295,192,888,739.35
  5. Step 5: Solve for x
    x = 295,192,888,739.35/607,979.62
  6. Step 6: Final answer
    x = 485,530.89

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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.