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Finding the Fourth Proportional to 539,859.60, 808,091.28 and 370,388.97

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Solution

The fourth proportional to 539,859.60, 808,091.28 and 370,388.97 is: 554,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,859.60 : 808,091.28 = 370,388.97 : x
  2. Step 2: Convert to fraction form
    539,859.60/808,091.28 = 370,388.97/x
  3. Step 3: Cross multiply
    539,859.60x = 808,091.28 × 370,388.97
  4. Step 4: Simplify right side
    539,859.60x = 299,308,096,865.18
  5. Step 5: Solve for x
    x = 299,308,096,865.18/539,859.60
  6. Step 6: Final answer
    x = 554,418.40

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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.