Home / 1,080,036.48-1,490,388.66-644,944.86

Finding the Fourth Proportional to 1,080,036.48, 1,490,388.66 and 644,944.86

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Solution

The fourth proportional to 1,080,036.48, 1,490,388.66 and 644,944.86 is: 889,987.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,036.48 : 1,490,388.66 = 644,944.86 : x
  2. Step 2: Convert to fraction form
    1,080,036.48/1,490,388.66 = 644,944.86/x
  3. Step 3: Cross multiply
    1,080,036.48x = 1,490,388.66 × 644,944.86
  4. Step 4: Simplify right side
    1,080,036.48x = 961,218,505,669.29
  5. Step 5: Solve for x
    x = 961,218,505,669.29/1,080,036.48
  6. Step 6: Final answer
    x = 889,987.07

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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.