Home / 781,381.07-1,177,928.33-729,301.04

Finding the Fourth Proportional to 781,381.07, 1,177,928.33 and 729,301.04

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Solution

The fourth proportional to 781,381.07, 1,177,928.33 and 729,301.04 is: 1,099,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,381.07 : 1,177,928.33 = 729,301.04 : x
  2. Step 2: Convert to fraction form
    781,381.07/1,177,928.33 = 729,301.04/x
  3. Step 3: Cross multiply
    781,381.07x = 1,177,928.33 × 729,301.04
  4. Step 4: Simplify right side
    781,381.07x = 859,064,356,114.46
  5. Step 5: Solve for x
    x = 859,064,356,114.46/781,381.07
  6. Step 6: Final answer
    x = 1,099,417.93

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.