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Finding the Fourth Proportional to 547,780.60, 822,515.70 and 298,948.60

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Solution

The fourth proportional to 547,780.60, 822,515.70 and 298,948.60 is: 448,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,780.60 : 822,515.70 = 298,948.60 : x
  2. Step 2: Convert to fraction form
    547,780.60/822,515.70 = 298,948.60/x
  3. Step 3: Cross multiply
    547,780.60x = 822,515.70 × 298,948.60
  4. Step 4: Simplify right side
    547,780.60x = 245,889,916,993.02
  5. Step 5: Solve for x
    x = 245,889,916,993.02/547,780.60
  6. Step 6: Final answer
    x = 448,883.95

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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.