Home / 1,080,031.96-1,490,382.35-644,940.27

Finding the Fourth Proportional to 1,080,031.96, 1,490,382.35 and 644,940.27

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Solution

The fourth proportional to 1,080,031.96, 1,490,382.35 and 644,940.27 is: 889,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,031.96 : 1,490,382.35 = 644,940.27 : x
  2. Step 2: Convert to fraction form
    1,080,031.96/1,490,382.35 = 644,940.27/x
  3. Step 3: Cross multiply
    1,080,031.96x = 1,490,382.35 × 644,940.27
  4. Step 4: Simplify right side
    1,080,031.96x = 961,207,595,212.24
  5. Step 5: Solve for x
    x = 961,207,595,212.24/1,080,031.96
  6. Step 6: Final answer
    x = 889,980.70

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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.