Home / 1,115,830.58-1,540,014.54-680,500.49

Finding the Fourth Proportional to 1,115,830.58, 1,540,014.54 and 680,500.49

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Solution

The fourth proportional to 1,115,830.58, 1,540,014.54 and 680,500.49 is: 939,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,830.58 : 1,540,014.54 = 680,500.49 : x
  2. Step 2: Convert to fraction form
    1,115,830.58/1,540,014.54 = 680,500.49/x
  3. Step 3: Cross multiply
    1,115,830.58x = 1,540,014.54 × 680,500.49
  4. Step 4: Simplify right side
    1,115,830.58x = 1,047,980,649,077.12
  5. Step 5: Solve for x
    x = 1,047,980,649,077.12/1,115,830.58
  6. Step 6: Final answer
    x = 939,193.34

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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.