Home / 1,007,856.39-1,390,841.90-555,147.39

Finding the Fourth Proportional to 1,007,856.39, 1,390,841.90 and 555,147.39

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Solution

The fourth proportional to 1,007,856.39, 1,390,841.90 and 555,147.39 is: 766,103.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,856.39 : 1,390,841.90 = 555,147.39 : x
  2. Step 2: Convert to fraction form
    1,007,856.39/1,390,841.90 = 555,147.39/x
  3. Step 3: Cross multiply
    1,007,856.39x = 1,390,841.90 × 555,147.39
  4. Step 4: Simplify right side
    1,007,856.39x = 772,122,250,687.64
  5. Step 5: Solve for x
    x = 772,122,250,687.64/1,007,856.39
  6. Step 6: Final answer
    x = 766,103.44

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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.