Home / 1,385,933.56-2,078,900.06-521,530.92

Finding the Fourth Proportional to 1,385,933.56, 2,078,900.06 and 521,530.92

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Solution

The fourth proportional to 1,385,933.56, 2,078,900.06 and 521,530.92 is: 782,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,933.56 : 2,078,900.06 = 521,530.92 : x
  2. Step 2: Convert to fraction form
    1,385,933.56/2,078,900.06 = 521,530.92/x
  3. Step 3: Cross multiply
    1,385,933.56x = 2,078,900.06 × 521,530.92
  4. Step 4: Simplify right side
    1,385,933.56x = 1,084,210,660,879.86
  5. Step 5: Solve for x
    x = 1,084,210,660,879.86/1,385,933.56
  6. Step 6: Final answer
    x = 782,296.27

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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.