Home / 1,115,733.60-1,673,600.40-666,961.20

Finding the Fourth Proportional to 1,115,733.60, 1,673,600.40 and 666,961.20

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Solution

The fourth proportional to 1,115,733.60, 1,673,600.40 and 666,961.20 is: 1,000,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,733.60 : 1,673,600.40 = 666,961.20 : x
  2. Step 2: Convert to fraction form
    1,115,733.60/1,673,600.40 = 666,961.20/x
  3. Step 3: Cross multiply
    1,115,733.60x = 1,673,600.40 × 666,961.20
  4. Step 4: Simplify right side
    1,115,733.60x = 1,116,226,531,104.48
  5. Step 5: Solve for x
    x = 1,116,226,531,104.48/1,115,733.60
  6. Step 6: Final answer
    x = 1,000,441.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.