Home / 756,187.20-1,134,434.40-257,601.60

Finding the Fourth Proportional to 756,187.20, 1,134,434.40 and 257,601.60

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Solution

The fourth proportional to 756,187.20, 1,134,434.40 and 257,601.60 is: 386,454.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,187.20 : 1,134,434.40 = 257,601.60 : x
  2. Step 2: Convert to fraction form
    756,187.20/1,134,434.40 = 257,601.60/x
  3. Step 3: Cross multiply
    756,187.20x = 1,134,434.40 × 257,601.60
  4. Step 4: Simplify right side
    756,187.20x = 292,232,116,535.04
  5. Step 5: Solve for x
    x = 292,232,116,535.04/756,187.20
  6. Step 6: Final answer
    x = 386,454.73

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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.