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Finding the Fourth Proportional to 584,436.99, 806,385.99 and 354,987.90

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Solution

The fourth proportional to 584,436.99, 806,385.99 and 354,987.90 is: 489,800.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,436.99 : 806,385.99 = 354,987.90 : x
  2. Step 2: Convert to fraction form
    584,436.99/806,385.99 = 354,987.90/x
  3. Step 3: Cross multiply
    584,436.99x = 806,385.99 × 354,987.90
  4. Step 4: Simplify right side
    584,436.99x = 286,257,269,179.52
  5. Step 5: Solve for x
    x = 286,257,269,179.52/584,436.99
  6. Step 6: Final answer
    x = 489,800.05

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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.