Home / 781,312.55-1,177,824.90-729,232.39

Finding the Fourth Proportional to 781,312.55, 1,177,824.90 and 729,232.39

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Solution

The fourth proportional to 781,312.55, 1,177,824.90 and 729,232.39 is: 1,099,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,312.55 : 1,177,824.90 = 729,232.39 : x
  2. Step 2: Convert to fraction form
    781,312.55/1,177,824.90 = 729,232.39/x
  3. Step 3: Cross multiply
    781,312.55x = 1,177,824.90 × 729,232.39
  4. Step 4: Simplify right side
    781,312.55x = 858,908,066,828.51
  5. Step 5: Solve for x
    x = 858,908,066,828.51/781,312.55
  6. Step 6: Final answer
    x = 1,099,314.31

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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.