Home / 2,160,781.92-3,240,602.64-644,055.84

Finding the Fourth Proportional to 2,160,781.92, 3,240,602.64 and 644,055.84

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Solution

The fourth proportional to 2,160,781.92, 3,240,602.64 and 644,055.84 is: 965,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,781.92 : 3,240,602.64 = 644,055.84 : x
  2. Step 2: Convert to fraction form
    2,160,781.92/3,240,602.64 = 644,055.84/x
  3. Step 3: Cross multiply
    2,160,781.92x = 3,240,602.64 × 644,055.84
  4. Step 4: Simplify right side
    2,160,781.92x = 2,087,129,055,411.42
  5. Step 5: Solve for x
    x = 2,087,129,055,411.42/2,160,781.92
  6. Step 6: Final answer
    x = 965,913.79

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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.