Home / 1,820,380.78-2,506,221.03-1,432,512.46

Finding the Fourth Proportional to 1,820,380.78, 2,506,221.03 and 1,432,512.46

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Solution

The fourth proportional to 1,820,380.78, 2,506,221.03 and 1,432,512.46 is: 1,972,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,380.78 : 2,506,221.03 = 1,432,512.46 : x
  2. Step 2: Convert to fraction form
    1,820,380.78/2,506,221.03 = 1,432,512.46/x
  3. Step 3: Cross multiply
    1,820,380.78x = 2,506,221.03 × 1,432,512.46
  4. Step 4: Simplify right side
    1,820,380.78x = 3,590,192,852,989.03
  5. Step 5: Solve for x
    x = 3,590,192,852,989.03/1,820,380.78
  6. Step 6: Final answer
    x = 1,972,220.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.