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Finding the Fourth Proportional to 539,093.90, 808,640.85 and 493,604.30

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Solution

The fourth proportional to 539,093.90, 808,640.85 and 493,604.30 is: 740,406.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,093.90 : 808,640.85 = 493,604.30 : x
  2. Step 2: Convert to fraction form
    539,093.90/808,640.85 = 493,604.30/x
  3. Step 3: Cross multiply
    539,093.90x = 808,640.85 × 493,604.30
  4. Step 4: Simplify right side
    539,093.90x = 399,148,600,715.66
  5. Step 5: Solve for x
    x = 399,148,600,715.66/539,093.90
  6. Step 6: Final answer
    x = 740,406.45

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Similar ratio
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1.5x scale

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.