Home / 1,242,331.98-1,714,407.94-783,742.78

Finding the Fourth Proportional to 1,242,331.98, 1,714,407.94 and 783,742.78

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Solution

The fourth proportional to 1,242,331.98, 1,714,407.94 and 783,742.78 is: 1,081,558.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,331.98 : 1,714,407.94 = 783,742.78 : x
  2. Step 2: Convert to fraction form
    1,242,331.98/1,714,407.94 = 783,742.78/x
  3. Step 3: Cross multiply
    1,242,331.98x = 1,714,407.94 × 783,742.78
  4. Step 4: Simplify right side
    1,242,331.98x = 1,343,654,844,949.67
  5. Step 5: Solve for x
    x = 1,343,654,844,949.67/1,242,331.98
  6. Step 6: Final answer
    x = 1,081,558.61

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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.