Home / 2,157,721.57-3,237,008.72-791,507.96

Finding the Fourth Proportional to 2,157,721.57, 3,237,008.72 and 791,507.96

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Solution

The fourth proportional to 2,157,721.57, 3,237,008.72 and 791,507.96 is: 1,187,418.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,721.57 : 3,237,008.72 = 791,507.96 : x
  2. Step 2: Convert to fraction form
    2,157,721.57/3,237,008.72 = 791,507.96/x
  3. Step 3: Cross multiply
    2,157,721.57x = 3,237,008.72 × 791,507.96
  4. Step 4: Simplify right side
    2,157,721.57x = 2,562,118,154,263.14
  5. Step 5: Solve for x
    x = 2,562,118,154,263.14/2,157,721.57
  6. Step 6: Final answer
    x = 1,187,418.34

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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.