Home / 686,253.29-1,029,509.46-259,916.77

Finding the Fourth Proportional to 686,253.29, 1,029,509.46 and 259,916.77

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Solution

The fourth proportional to 686,253.29, 1,029,509.46 and 259,916.77 is: 389,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,253.29 : 1,029,509.46 = 259,916.77 : x
  2. Step 2: Convert to fraction form
    686,253.29/1,029,509.46 = 259,916.77/x
  3. Step 3: Cross multiply
    686,253.29x = 1,029,509.46 × 259,916.77
  4. Step 4: Simplify right side
    686,253.29x = 267,586,772,228.06
  5. Step 5: Solve for x
    x = 267,586,772,228.06/686,253.29
  6. Step 6: Final answer
    x = 389,924.21

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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.