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Finding the Fourth Proportional to 539,101.20, 744,198.84 and 348,207.72

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Solution

The fourth proportional to 539,101.20, 744,198.84 and 348,207.72 is: 480,681.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,101.20 : 744,198.84 = 348,207.72 : x
  2. Step 2: Convert to fraction form
    539,101.20/744,198.84 = 348,207.72/x
  3. Step 3: Cross multiply
    539,101.20x = 744,198.84 × 348,207.72
  4. Step 4: Simplify right side
    539,101.20x = 259,135,781,303.05
  5. Step 5: Solve for x
    x = 259,135,781,303.05/539,101.20
  6. Step 6: Final answer
    x = 480,681.14

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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.