Home / 1,080,029.96-1,490,379.59-644,938.27

Finding the Fourth Proportional to 1,080,029.96, 1,490,379.59 and 644,938.27

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Solution

The fourth proportional to 1,080,029.96, 1,490,379.59 and 644,938.27 is: 889,977.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,029.96 : 1,490,379.59 = 644,938.27 : x
  2. Step 2: Convert to fraction form
    1,080,029.96/1,490,379.59 = 644,938.27/x
  3. Step 3: Cross multiply
    1,080,029.96x = 1,490,379.59 × 644,938.27
  4. Step 4: Simplify right side
    1,080,029.96x = 961,202,832,953.98
  5. Step 5: Solve for x
    x = 961,202,832,953.98/1,080,029.96
  6. Step 6: Final answer
    x = 889,977.93

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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.