Home / 481,036.60-721,667.22-139,487.23

Finding the Fourth Proportional to 481,036.60, 721,667.22 and 139,487.23

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Solution

The fourth proportional to 481,036.60, 721,667.22 and 139,487.23 is: 209,263.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,036.60 : 721,667.22 = 139,487.23 : x
  2. Step 2: Convert to fraction form
    481,036.60/721,667.22 = 139,487.23/x
  3. Step 3: Cross multiply
    481,036.60x = 721,667.22 × 139,487.23
  4. Step 4: Simplify right side
    481,036.60x = 100,663,361,499.60
  5. Step 5: Solve for x
    x = 100,663,361,499.60/481,036.60
  6. Step 6: Final answer
    x = 209,263.41

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1.5x scale

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.