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Finding the Fourth Proportional to 521,242.38, 719,309.62 and 294,887.88

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Solution

The fourth proportional to 521,242.38, 719,309.62 and 294,887.88 is: 406,942.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,242.38 : 719,309.62 = 294,887.88 : x
  2. Step 2: Convert to fraction form
    521,242.38/719,309.62 = 294,887.88/x
  3. Step 3: Cross multiply
    521,242.38x = 719,309.62 × 294,887.88
  4. Step 4: Simplify right side
    521,242.38x = 212,115,684,571.64
  5. Step 5: Solve for x
    x = 212,115,684,571.64/521,242.38
  6. Step 6: Final answer
    x = 406,942.52

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1.5x scale

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.