Home / 3,946,739.20-5,916,480-1,421,776.96

Finding the Fourth Proportional to 3,946,739.20, 5,916,480 and 1,421,776.96

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Solution

The fourth proportional to 3,946,739.20, 5,916,480 and 1,421,776.96 is: 2,131,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946,739.20 : 5,916,480 = 1,421,776.96 : x
  2. Step 2: Convert to fraction form
    3,946,739.20/5,916,480 = 1,421,776.96/x
  3. Step 3: Cross multiply
    3,946,739.20x = 5,916,480 × 1,421,776.96
  4. Step 4: Simplify right side
    3,946,739.20x = 8,411,914,948,300.80
  5. Step 5: Solve for x
    x = 8,411,914,948,300.80/3,946,739.20
  6. Step 6: Final answer
    x = 2,131,358.20

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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.