Home / 1,248,112.40-1,721,848.05-731,604.47

Finding the Fourth Proportional to 1,248,112.40, 1,721,848.05 and 731,604.47

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Solution

The fourth proportional to 1,248,112.40, 1,721,848.05 and 731,604.47 is: 1,009,293.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,112.40 : 1,721,848.05 = 731,604.47 : x
  2. Step 2: Convert to fraction form
    1,248,112.40/1,721,848.05 = 731,604.47/x
  3. Step 3: Cross multiply
    1,248,112.40x = 1,721,848.05 × 731,604.47
  4. Step 4: Simplify right side
    1,248,112.40x = 1,259,711,721,431.54
  5. Step 5: Solve for x
    x = 1,259,711,721,431.54/1,248,112.40
  6. Step 6: Final answer
    x = 1,009,293.50

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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.