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Finding the Fourth Proportional to 965,719.80, 1,448,579.70 and 291,905.10

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Solution

The fourth proportional to 965,719.80, 1,448,579.70 and 291,905.10 is: 437,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,719.80 : 1,448,579.70 = 291,905.10 : x
  2. Step 2: Convert to fraction form
    965,719.80/1,448,579.70 = 291,905.10/x
  3. Step 3: Cross multiply
    965,719.80x = 1,448,579.70 × 291,905.10
  4. Step 4: Simplify right side
    965,719.80x = 422,847,802,186.47
  5. Step 5: Solve for x
    x = 422,847,802,186.47/965,719.80
  6. Step 6: Final answer
    x = 437,857.65

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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.