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Finding the Fourth Proportional to 644,575.80, 965,697.30 and 551,263.80

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Solution

The fourth proportional to 644,575.80, 965,697.30 and 551,263.80 is: 825,898.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,575.80 : 965,697.30 = 551,263.80 : x
  2. Step 2: Convert to fraction form
    644,575.80/965,697.30 = 551,263.80/x
  3. Step 3: Cross multiply
    644,575.80x = 965,697.30 × 551,263.80
  4. Step 4: Simplify right side
    644,575.80x = 532,353,963,247.74
  5. Step 5: Solve for x
    x = 532,353,963,247.74/644,575.80
  6. Step 6: Final answer
    x = 825,898.15

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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.