Home / 808,317.18-1,212,884.55-538,628.94

Finding the Fourth Proportional to 808,317.18, 1,212,884.55 and 538,628.94

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Solution

The fourth proportional to 808,317.18, 1,212,884.55 and 538,628.94 is: 808,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,317.18 : 1,212,884.55 = 538,628.94 : x
  2. Step 2: Convert to fraction form
    808,317.18/1,212,884.55 = 538,628.94/x
  3. Step 3: Cross multiply
    808,317.18x = 1,212,884.55 × 538,628.94
  4. Step 4: Simplify right side
    808,317.18x = 653,294,719,508.88
  5. Step 5: Solve for x
    x = 653,294,719,508.88/808,317.18
  6. Step 6: Final answer
    x = 808,215.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.