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Finding the Fourth Proportional to 626,755.08, 864,975.56 and 354,870.88

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Solution

The fourth proportional to 626,755.08, 864,975.56 and 354,870.88 is: 489,752.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,755.08 : 864,975.56 = 354,870.88 : x
  2. Step 2: Convert to fraction form
    626,755.08/864,975.56 = 354,870.88/x
  3. Step 3: Cross multiply
    626,755.08x = 864,975.56 × 354,870.88
  4. Step 4: Simplify right side
    626,755.08x = 306,954,638,155.69
  5. Step 5: Solve for x
    x = 306,954,638,155.69/626,755.08
  6. Step 6: Final answer
    x = 489,752.13

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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.