Home / 1,202,419.50-1,659,391.07-665,875.50

Finding the Fourth Proportional to 1,202,419.50, 1,659,391.07 and 665,875.50

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Solution

The fourth proportional to 1,202,419.50, 1,659,391.07 and 665,875.50 is: 918,937.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,419.50 : 1,659,391.07 = 665,875.50 : x
  2. Step 2: Convert to fraction form
    1,202,419.50/1,659,391.07 = 665,875.50/x
  3. Step 3: Cross multiply
    1,202,419.50x = 1,659,391.07 × 665,875.50
  4. Step 4: Simplify right side
    1,202,419.50x = 1,104,947,858,431.79
  5. Step 5: Solve for x
    x = 1,104,947,858,431.79/1,202,419.50
  6. Step 6: Final answer
    x = 918,937.08

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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.