Home / 1,281,342.17-1,768,255.38-700,602.78

Finding the Fourth Proportional to 1,281,342.17, 1,768,255.38 and 700,602.78

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Solution

The fourth proportional to 1,281,342.17, 1,768,255.38 and 700,602.78 is: 966,833.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,342.17 : 1,768,255.38 = 700,602.78 : x
  2. Step 2: Convert to fraction form
    1,281,342.17/1,768,255.38 = 700,602.78/x
  3. Step 3: Cross multiply
    1,281,342.17x = 1,768,255.38 × 700,602.78
  4. Step 4: Simplify right side
    1,281,342.17x = 1,238,844,634,977.96
  5. Step 5: Solve for x
    x = 1,238,844,634,977.96/1,281,342.17
  6. Step 6: Final answer
    x = 966,833.58

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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.