Home / 1,022,859.38-1,534,233.84-312,887.50

Finding the Fourth Proportional to 1,022,859.38, 1,534,233.84 and 312,887.50

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Solution

The fourth proportional to 1,022,859.38, 1,534,233.84 and 312,887.50 is: 469,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,859.38 : 1,534,233.84 = 312,887.50 : x
  2. Step 2: Convert to fraction form
    1,022,859.38/1,534,233.84 = 312,887.50/x
  3. Step 3: Cross multiply
    1,022,859.38x = 1,534,233.84 × 312,887.50
  4. Step 4: Simplify right side
    1,022,859.38x = 480,042,590,613
  5. Step 5: Solve for x
    x = 480,042,590,613/1,022,859.38
  6. Step 6: Final answer
    x = 469,314.36

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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.