Home / 825,667.50-1,139,420.80-481,437

Finding the Fourth Proportional to 825,667.50, 1,139,420.80 and 481,437

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Solution

The fourth proportional to 825,667.50, 1,139,420.80 and 481,437 is: 664,382.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,667.50 : 1,139,420.80 = 481,437 : x
  2. Step 2: Convert to fraction form
    825,667.50/1,139,420.80 = 481,437/x
  3. Step 3: Cross multiply
    825,667.50x = 1,139,420.80 × 481,437
  4. Step 4: Simplify right side
    825,667.50x = 548,559,331,689.60
  5. Step 5: Solve for x
    x = 548,559,331,689.60/825,667.50
  6. Step 6: Final answer
    x = 664,382.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.