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Finding the Fourth Proportional to 2,664,151.86, 3,996,720.63 and 842,975.15

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Solution

The fourth proportional to 2,664,151.86, 3,996,720.63 and 842,975.15 is: 1,264,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664,151.86 : 3,996,720.63 = 842,975.15 : x
  2. Step 2: Convert to fraction form
    2,664,151.86/3,996,720.63 = 842,975.15/x
  3. Step 3: Cross multiply
    2,664,151.86x = 3,996,720.63 × 842,975.15
  4. Step 4: Simplify right side
    2,664,151.86x = 3,369,136,175,080.30
  5. Step 5: Solve for x
    x = 3,369,136,175,080.30/2,664,151.86
  6. Step 6: Final answer
    x = 1,264,618.67

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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.