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Finding the Fourth Proportional to 539,152.76, 743,897.08 and 355,370.96

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Solution

The fourth proportional to 539,152.76, 743,897.08 and 355,370.96 is: 490,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,152.76 : 743,897.08 = 355,370.96 : x
  2. Step 2: Convert to fraction form
    539,152.76/743,897.08 = 355,370.96/x
  3. Step 3: Cross multiply
    539,152.76x = 743,897.08 × 355,370.96
  4. Step 4: Simplify right side
    539,152.76x = 264,359,419,460.80
  5. Step 5: Solve for x
    x = 264,359,419,460.80/539,152.76
  6. Step 6: Final answer
    x = 490,323.78

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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.