Home / 2,142,475.35-3,213,731.21-545,039.79

Finding the Fourth Proportional to 2,142,475.35, 3,213,731.21 and 545,039.79

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Solution

The fourth proportional to 2,142,475.35, 3,213,731.21 and 545,039.79 is: 817,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,475.35 : 3,213,731.21 = 545,039.79 : x
  2. Step 2: Convert to fraction form
    2,142,475.35/3,213,731.21 = 545,039.79/x
  3. Step 3: Cross multiply
    2,142,475.35x = 3,213,731.21 × 545,039.79
  4. Step 4: Simplify right side
    2,142,475.35x = 1,751,611,381,089.65
  5. Step 5: Solve for x
    x = 1,751,611,381,089.65/2,142,475.35
  6. Step 6: Final answer
    x = 817,564.31

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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.