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Finding the Fourth Proportional to 539,149.51, 743,892.59 and 355,367.71

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Solution

The fourth proportional to 539,149.51, 743,892.59 and 355,367.71 is: 490,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,149.51 : 743,892.59 = 355,367.71 : x
  2. Step 2: Convert to fraction form
    539,149.51/743,892.59 = 355,367.71/x
  3. Step 3: Cross multiply
    539,149.51x = 743,892.59 × 355,367.71
  4. Step 4: Simplify right side
    539,149.51x = 264,355,406,194.27
  5. Step 5: Solve for x
    x = 264,355,406,194.27/539,149.51
  6. Step 6: Final answer
    x = 490,319.29

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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.