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Finding the Fourth Proportional to 539,773.70, 808,364.55 and 289,904.90

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Solution

The fourth proportional to 539,773.70, 808,364.55 and 289,904.90 is: 434,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,773.70 : 808,364.55 = 289,904.90 : x
  2. Step 2: Convert to fraction form
    539,773.70/808,364.55 = 289,904.90/x
  3. Step 3: Cross multiply
    539,773.70x = 808,364.55 × 289,904.90
  4. Step 4: Simplify right side
    539,773.70x = 234,348,844,031.30
  5. Step 5: Solve for x
    x = 234,348,844,031.30/539,773.70
  6. Step 6: Final answer
    x = 434,161.29

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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.