Home / 1,642,635.76-2,266,813.47-917,493.79

Finding the Fourth Proportional to 1,642,635.76, 2,266,813.47 and 917,493.79

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Solution

The fourth proportional to 1,642,635.76, 2,266,813.47 and 917,493.79 is: 1,266,128.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,635.76 : 2,266,813.47 = 917,493.79 : x
  2. Step 2: Convert to fraction form
    1,642,635.76/2,266,813.47 = 917,493.79/x
  3. Step 3: Cross multiply
    1,642,635.76x = 2,266,813.47 × 917,493.79
  4. Step 4: Simplify right side
    1,642,635.76x = 2,079,787,281,813.35
  5. Step 5: Solve for x
    x = 2,079,787,281,813.35/1,642,635.76
  6. Step 6: Final answer
    x = 1,266,128.09

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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.