Home / 831,979.31-1,248,155.67-263,394.41

Finding the Fourth Proportional to 831,979.31, 1,248,155.67 and 263,394.41

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Solution

The fourth proportional to 831,979.31, 1,248,155.67 and 263,394.41 is: 395,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,979.31 : 1,248,155.67 = 263,394.41 : x
  2. Step 2: Convert to fraction form
    831,979.31/1,248,155.67 = 263,394.41/x
  3. Step 3: Cross multiply
    831,979.31x = 1,248,155.67 × 263,394.41
  4. Step 4: Simplify right side
    831,979.31x = 328,757,220,047.03
  5. Step 5: Solve for x
    x = 328,757,220,047.03/831,979.31
  6. Step 6: Final answer
    x = 395,150.72

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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.