Home / 1,129,357.44-1,558,516.32-620,092.80

Finding the Fourth Proportional to 1,129,357.44, 1,558,516.32 and 620,092.80

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Solution

The fourth proportional to 1,129,357.44, 1,558,516.32 and 620,092.80 is: 855,729.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,357.44 : 1,558,516.32 = 620,092.80 : x
  2. Step 2: Convert to fraction form
    1,129,357.44/1,558,516.32 = 620,092.80/x
  3. Step 3: Cross multiply
    1,129,357.44x = 1,558,516.32 × 620,092.80
  4. Step 4: Simplify right side
    1,129,357.44x = 966,424,748,714.50
  5. Step 5: Solve for x
    x = 966,424,748,714.50/1,129,357.44
  6. Step 6: Final answer
    x = 855,729.74

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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.