Home / 1,086,408.12-1,499,518.79-742,383.30

Finding the Fourth Proportional to 1,086,408.12, 1,499,518.79 and 742,383.30

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Solution

The fourth proportional to 1,086,408.12, 1,499,518.79 and 742,383.30 is: 1,024,677.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,408.12 : 1,499,518.79 = 742,383.30 : x
  2. Step 2: Convert to fraction form
    1,086,408.12/1,499,518.79 = 742,383.30/x
  3. Step 3: Cross multiply
    1,086,408.12x = 1,499,518.79 × 742,383.30
  4. Step 4: Simplify right side
    1,086,408.12x = 1,113,217,696,522.70
  5. Step 5: Solve for x
    x = 1,113,217,696,522.70/1,086,408.12
  6. Step 6: Final answer
    x = 1,024,677.27

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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.