Home / 1,281,140.73-1,767,984.75-708,190.47

Finding the Fourth Proportional to 1,281,140.73, 1,767,984.75 and 708,190.47

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Solution

The fourth proportional to 1,281,140.73, 1,767,984.75 and 708,190.47 is: 977,308.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,140.73 : 1,767,984.75 = 708,190.47 : x
  2. Step 2: Convert to fraction form
    1,281,140.73/1,767,984.75 = 708,190.47/x
  3. Step 3: Cross multiply
    1,281,140.73x = 1,767,984.75 × 708,190.47
  4. Step 4: Simplify right side
    1,281,140.73x = 1,252,069,951,055.33
  5. Step 5: Solve for x
    x = 1,252,069,951,055.33/1,281,140.73
  6. Step 6: Final answer
    x = 977,308.68

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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.