Home / 1,126,916.96-1,690,437.12-285,476

Finding the Fourth Proportional to 1,126,916.96, 1,690,437.12 and 285,476

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Solution

The fourth proportional to 1,126,916.96, 1,690,437.12 and 285,476 is: 428,229.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,916.96 : 1,690,437.12 = 285,476 : x
  2. Step 2: Convert to fraction form
    1,126,916.96/1,690,437.12 = 285,476/x
  3. Step 3: Cross multiply
    1,126,916.96x = 1,690,437.12 × 285,476
  4. Step 4: Simplify right side
    1,126,916.96x = 482,579,227,269.12
  5. Step 5: Solve for x
    x = 482,579,227,269.12/1,126,916.96
  6. Step 6: Final answer
    x = 428,229.63

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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.