Home / 915,619.80-1,370,805.30-889,375.80

Finding the Fourth Proportional to 915,619.80, 1,370,805.30 and 889,375.80

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Solution

The fourth proportional to 915,619.80, 1,370,805.30 and 889,375.80 is: 1,331,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,619.80 : 1,370,805.30 = 889,375.80 : x
  2. Step 2: Convert to fraction form
    915,619.80/1,370,805.30 = 889,375.80/x
  3. Step 3: Cross multiply
    915,619.80x = 1,370,805.30 × 889,375.80
  4. Step 4: Simplify right side
    915,619.80x = 1,219,161,060,331.74
  5. Step 5: Solve for x
    x = 1,219,161,060,331.74/915,619.80
  6. Step 6: Final answer
    x = 1,331,514.52

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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.