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Finding the Fourth Proportional to 539,906.04, 745,099.56 and 310,460.58

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Solution

The fourth proportional to 539,906.04, 745,099.56 and 310,460.58 is: 428,452.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,906.04 : 745,099.56 = 310,460.58 : x
  2. Step 2: Convert to fraction form
    539,906.04/745,099.56 = 310,460.58/x
  3. Step 3: Cross multiply
    539,906.04x = 745,099.56 × 310,460.58
  4. Step 4: Simplify right side
    539,906.04x = 231,324,041,555.35
  5. Step 5: Solve for x
    x = 231,324,041,555.35/539,906.04
  6. Step 6: Final answer
    x = 428,452.41

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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.