Home / 721,052.79-1,081,496.57-188,625.21

Finding the Fourth Proportional to 721,052.79, 1,081,496.57 and 188,625.21

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Solution

The fourth proportional to 721,052.79, 1,081,496.57 and 188,625.21 is: 282,916.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,052.79 : 1,081,496.57 = 188,625.21 : x
  2. Step 2: Convert to fraction form
    721,052.79/1,081,496.57 = 188,625.21/x
  3. Step 3: Cross multiply
    721,052.79x = 1,081,496.57 × 188,625.21
  4. Step 4: Simplify right side
    721,052.79x = 203,997,516,687.40
  5. Step 5: Solve for x
    x = 203,997,516,687.40/721,052.79
  6. Step 6: Final answer
    x = 282,916.20

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1.5x scale

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.