Home / 1,112,449.10-1,669,111.05-438,415.70

Finding the Fourth Proportional to 1,112,449.10, 1,669,111.05 and 438,415.70

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Solution

The fourth proportional to 1,112,449.10, 1,669,111.05 and 438,415.70 is: 657,795.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,449.10 : 1,669,111.05 = 438,415.70 : x
  2. Step 2: Convert to fraction form
    1,112,449.10/1,669,111.05 = 438,415.70/x
  3. Step 3: Cross multiply
    1,112,449.10x = 1,669,111.05 × 438,415.70
  4. Step 4: Simplify right side
    1,112,449.10x = 731,764,489,363.49
  5. Step 5: Solve for x
    x = 731,764,489,363.49/1,112,449.10
  6. Step 6: Final answer
    x = 657,795.93

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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.