Home / 1,380,675.97-2,071,133.63-421,347.56

Finding the Fourth Proportional to 1,380,675.97, 2,071,133.63 and 421,347.56

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Solution

The fourth proportional to 1,380,675.97, 2,071,133.63 and 421,347.56 is: 632,057.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,675.97 : 2,071,133.63 = 421,347.56 : x
  2. Step 2: Convert to fraction form
    1,380,675.97/2,071,133.63 = 421,347.56/x
  3. Step 3: Cross multiply
    1,380,675.97x = 2,071,133.63 × 421,347.56
  4. Step 4: Simplify right side
    1,380,675.97x = 872,667,104,572.30
  5. Step 5: Solve for x
    x = 872,667,104,572.30/1,380,675.97
  6. Step 6: Final answer
    x = 632,057.87

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1.5x scale

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.