Home / 1,114,573.20-1,538,110.86-631,138.20

Finding the Fourth Proportional to 1,114,573.20, 1,538,110.86 and 631,138.20

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Solution

The fourth proportional to 1,114,573.20, 1,538,110.86 and 631,138.20 is: 870,970.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,573.20 : 1,538,110.86 = 631,138.20 : x
  2. Step 2: Convert to fraction form
    1,114,573.20/1,538,110.86 = 631,138.20/x
  3. Step 3: Cross multiply
    1,114,573.20x = 1,538,110.86 × 631,138.20
  4. Step 4: Simplify right side
    1,114,573.20x = 970,760,519,580.85
  5. Step 5: Solve for x
    x = 970,760,519,580.85/1,114,573.20
  6. Step 6: Final answer
    x = 870,970.63

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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.