Home / 1,565,928.43-2,160,944.49-921,390.37

Finding the Fourth Proportional to 1,565,928.43, 2,160,944.49 and 921,390.37

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Solution

The fourth proportional to 1,565,928.43, 2,160,944.49 and 921,390.37 is: 1,271,497.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,928.43 : 2,160,944.49 = 921,390.37 : x
  2. Step 2: Convert to fraction form
    1,565,928.43/2,160,944.49 = 921,390.37/x
  3. Step 3: Cross multiply
    1,565,928.43x = 2,160,944.49 × 921,390.37
  4. Step 4: Simplify right side
    1,565,928.43x = 1,991,073,443,190.56
  5. Step 5: Solve for x
    x = 1,991,073,443,190.56/1,565,928.43
  6. Step 6: Final answer
    x = 1,271,497.09

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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.