Home / 1,115,818.36-1,539,997.60-680,488.24

Finding the Fourth Proportional to 1,115,818.36, 1,539,997.60 and 680,488.24

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Solution

The fourth proportional to 1,115,818.36, 1,539,997.60 and 680,488.24 is: 939,176.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,818.36 : 1,539,997.60 = 680,488.24 : x
  2. Step 2: Convert to fraction form
    1,115,818.36/1,539,997.60 = 680,488.24/x
  3. Step 3: Cross multiply
    1,115,818.36x = 1,539,997.60 × 680,488.24
  4. Step 4: Simplify right side
    1,115,818.36x = 1,047,950,256,428.22
  5. Step 5: Solve for x
    x = 1,047,950,256,428.22/1,115,818.36
  6. Step 6: Final answer
    x = 939,176.39

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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.