Home / 547,694.60-819,929.10-408,072.20

Finding the Fourth Proportional to 547,694.60, 819,929.10 and 408,072.20

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Solution

The fourth proportional to 547,694.60, 819,929.10 and 408,072.20 is: 610,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,694.60 : 819,929.10 = 408,072.20 : x
  2. Step 2: Convert to fraction form
    547,694.60/819,929.10 = 408,072.20/x
  3. Step 3: Cross multiply
    547,694.60x = 819,929.10 × 408,072.20
  4. Step 4: Simplify right side
    547,694.60x = 334,590,271,681.02
  5. Step 5: Solve for x
    x = 334,590,271,681.02/547,694.60
  6. Step 6: Final answer
    x = 610,906.65

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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.