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Finding the Fourth Proportional to 521,171.46, 719,219.28 and 294,812.10

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Solution

The fourth proportional to 521,171.46, 719,219.28 and 294,812.10 is: 406,842.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,171.46 : 719,219.28 = 294,812.10 : x
  2. Step 2: Convert to fraction form
    521,171.46/719,219.28 = 294,812.10/x
  3. Step 3: Cross multiply
    521,171.46x = 719,219.28 × 294,812.10
  4. Step 4: Simplify right side
    521,171.46x = 212,034,546,297.29
  5. Step 5: Solve for x
    x = 212,034,546,297.29/521,171.46
  6. Step 6: Final answer
    x = 406,842.21

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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.