Home / 1,385,928.56-2,078,892.56-521,525.92

Finding the Fourth Proportional to 1,385,928.56, 2,078,892.56 and 521,525.92

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Solution

The fourth proportional to 1,385,928.56, 2,078,892.56 and 521,525.92 is: 782,288.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,928.56 : 2,078,892.56 = 521,525.92 : x
  2. Step 2: Convert to fraction form
    1,385,928.56/2,078,892.56 = 521,525.92/x
  3. Step 3: Cross multiply
    1,385,928.56x = 2,078,892.56 × 521,525.92
  4. Step 4: Simplify right side
    1,385,928.56x = 1,084,196,354,935.16
  5. Step 5: Solve for x
    x = 1,084,196,354,935.16/1,385,928.56
  6. Step 6: Final answer
    x = 782,288.77

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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.