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Finding the Fourth Proportional to 1,281,283, 1,768,016.97 and 708,245.26

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Solution

The fourth proportional to 1,281,283, 1,768,016.97 and 708,245.26 is: 977,293.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,283 : 1,768,016.97 = 708,245.26 : x
  2. Step 2: Convert to fraction form
    1,281,283/1,768,016.97 = 708,245.26/x
  3. Step 3: Cross multiply
    1,281,283x = 1,768,016.97 × 708,245.26
  4. Step 4: Simplify right side
    1,281,283x = 1,252,189,638,602.06
  5. Step 5: Solve for x
    x = 1,252,189,638,602.06/1,281,283
  6. Step 6: Final answer
    x = 977,293.57

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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.