Home / 521,551.14-719,715.69-320,308.26

Finding the Fourth Proportional to 521,551.14, 719,715.69 and 320,308.26

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Solution

The fourth proportional to 521,551.14, 719,715.69 and 320,308.26 is: 442,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,551.14 : 719,715.69 = 320,308.26 : x
  2. Step 2: Convert to fraction form
    521,551.14/719,715.69 = 320,308.26/x
  3. Step 3: Cross multiply
    521,551.14x = 719,715.69 × 320,308.26
  4. Step 4: Simplify right side
    521,551.14x = 230,530,880,358.60
  5. Step 5: Solve for x
    x = 230,530,880,358.60/521,551.14
  6. Step 6: Final answer
    x = 442,010.12

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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.