Home / 1,114,572.45-1,538,109.83-631,137.45

Finding the Fourth Proportional to 1,114,572.45, 1,538,109.83 and 631,137.45

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Solution

The fourth proportional to 1,114,572.45, 1,538,109.83 and 631,137.45 is: 870,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,572.45 : 1,538,109.83 = 631,137.45 : x
  2. Step 2: Convert to fraction form
    1,114,572.45/1,538,109.83 = 631,137.45/x
  3. Step 3: Cross multiply
    1,114,572.45x = 1,538,109.83 × 631,137.45
  4. Step 4: Simplify right side
    1,114,572.45x = 970,758,712,770.45
  5. Step 5: Solve for x
    x = 970,758,712,770.45/1,114,572.45
  6. Step 6: Final answer
    x = 870,969.59

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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.