Home / 1,392,431.67-2,088,242.31-539,313.04

Finding the Fourth Proportional to 1,392,431.67, 2,088,242.31 and 539,313.04

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Solution

The fourth proportional to 1,392,431.67, 2,088,242.31 and 539,313.04 is: 808,812.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,431.67 : 2,088,242.31 = 539,313.04 : x
  2. Step 2: Convert to fraction form
    1,392,431.67/2,088,242.31 = 539,313.04/x
  3. Step 3: Cross multiply
    1,392,431.67x = 2,088,242.31 × 539,313.04
  4. Step 4: Simplify right side
    1,392,431.67x = 1,126,216,305,608.40
  5. Step 5: Solve for x
    x = 1,126,216,305,608.40/1,392,431.67
  6. Step 6: Final answer
    x = 808,812.62

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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.