Home / 835,380.47-1,252,869.89-385,669.37

Finding the Fourth Proportional to 835,380.47, 1,252,869.89 and 385,669.37

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Solution

The fourth proportional to 835,380.47, 1,252,869.89 and 385,669.37 is: 578,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,380.47 : 1,252,869.89 = 385,669.37 : x
  2. Step 2: Convert to fraction form
    835,380.47/1,252,869.89 = 385,669.37/x
  3. Step 3: Cross multiply
    835,380.47x = 1,252,869.89 × 385,669.37
  4. Step 4: Simplify right side
    835,380.47x = 483,193,542,372.10
  5. Step 5: Solve for x
    x = 483,193,542,372.10/835,380.47
  6. Step 6: Final answer
    x = 578,411.34

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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.