Home / 1,010,102.72-1,514,760.32-378,672

Finding the Fourth Proportional to 1,010,102.72, 1,514,760.32 and 378,672

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Solution

The fourth proportional to 1,010,102.72, 1,514,760.32 and 378,672 is: 567,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,102.72 : 1,514,760.32 = 378,672 : x
  2. Step 2: Convert to fraction form
    1,010,102.72/1,514,760.32 = 378,672/x
  3. Step 3: Cross multiply
    1,010,102.72x = 1,514,760.32 × 378,672
  4. Step 4: Simplify right side
    1,010,102.72x = 573,597,319,895.04
  5. Step 5: Solve for x
    x = 573,597,319,895.04/1,010,102.72
  6. Step 6: Final answer
    x = 567,860.39

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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.