Home / 1,120,257.32-1,545,514.98-689,790.92

Finding the Fourth Proportional to 1,120,257.32, 1,545,514.98 and 689,790.92

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Solution

The fourth proportional to 1,120,257.32, 1,545,514.98 and 689,790.92 is: 951,640.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,257.32 : 1,545,514.98 = 689,790.92 : x
  2. Step 2: Convert to fraction form
    1,120,257.32/1,545,514.98 = 689,790.92/x
  3. Step 3: Cross multiply
    1,120,257.32x = 1,545,514.98 × 689,790.92
  4. Step 4: Simplify right side
    1,120,257.32x = 1,066,082,199,927.98
  5. Step 5: Solve for x
    x = 1,066,082,199,927.98/1,120,257.32
  6. Step 6: Final answer
    x = 951,640.47

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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.