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Finding the Fourth Proportional to 521,588.64, 719,809.44 and 295,229.28

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Solution

The fourth proportional to 521,588.64, 719,809.44 and 295,229.28 is: 407,426.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,588.64 : 719,809.44 = 295,229.28 : x
  2. Step 2: Convert to fraction form
    521,588.64/719,809.44 = 295,229.28/x
  3. Step 3: Cross multiply
    521,588.64x = 719,809.44 × 295,229.28
  4. Step 4: Simplify right side
    521,588.64x = 212,508,822,708.40
  5. Step 5: Solve for x
    x = 212,508,822,708.40/521,588.64
  6. Step 6: Final answer
    x = 407,426.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.