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Finding the Fourth Proportional to 649,533.69, 967,451.38 and 620,390.55

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Solution

The fourth proportional to 649,533.69, 967,451.38 and 620,390.55 is: 924,043.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,533.69 : 967,451.38 = 620,390.55 : x
  2. Step 2: Convert to fraction form
    649,533.69/967,451.38 = 620,390.55/x
  3. Step 3: Cross multiply
    649,533.69x = 967,451.38 × 620,390.55
  4. Step 4: Simplify right side
    649,533.69x = 600,197,692,185.48
  5. Step 5: Solve for x
    x = 600,197,692,185.48/649,533.69
  6. Step 6: Final answer
    x = 924,043.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.