Home / 1,288,201.80-1,932,302.70-658,345.80

Finding the Fourth Proportional to 1,288,201.80, 1,932,302.70 and 658,345.80

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Solution

The fourth proportional to 1,288,201.80, 1,932,302.70 and 658,345.80 is: 987,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,201.80 : 1,932,302.70 = 658,345.80 : x
  2. Step 2: Convert to fraction form
    1,288,201.80/1,932,302.70 = 658,345.80/x
  3. Step 3: Cross multiply
    1,288,201.80x = 1,932,302.70 × 658,345.80
  4. Step 4: Simplify right side
    1,288,201.80x = 1,272,123,366,873.66
  5. Step 5: Solve for x
    x = 1,272,123,366,873.66/1,288,201.80
  6. Step 6: Final answer
    x = 987,518.70

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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.