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Finding the Fourth Proportional to 649,533.81, 967,451.56 and 620,390.67

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Solution

The fourth proportional to 649,533.81, 967,451.56 and 620,390.67 is: 924,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,533.81 : 967,451.56 = 620,390.67 : x
  2. Step 2: Convert to fraction form
    649,533.81/967,451.56 = 620,390.67/x
  3. Step 3: Cross multiply
    649,533.81x = 967,451.56 × 620,390.67
  4. Step 4: Simplify right side
    649,533.81x = 600,197,921,500.95
  5. Step 5: Solve for x
    x = 600,197,921,500.95/649,533.81
  6. Step 6: Final answer
    x = 924,044.16

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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.