Home / 1,378,979.49-2,068,469.25-432,424.02

Finding the Fourth Proportional to 1,378,979.49, 2,068,469.25 and 432,424.02

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Solution

The fourth proportional to 1,378,979.49, 2,068,469.25 and 432,424.02 is: 648,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,979.49 : 2,068,469.25 = 432,424.02 : x
  2. Step 2: Convert to fraction form
    1,378,979.49/2,068,469.25 = 432,424.02/x
  3. Step 3: Cross multiply
    1,378,979.49x = 2,068,469.25 × 432,424.02
  4. Step 4: Simplify right side
    1,378,979.49x = 894,455,788,331.39
  5. Step 5: Solve for x
    x = 894,455,788,331.39/1,378,979.49
  6. Step 6: Final answer
    x = 648,636.03

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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.