Home / 1,215,884.34-1,678,151.79-801,692.46

Finding the Fourth Proportional to 1,215,884.34, 1,678,151.79 and 801,692.46

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Solution

The fourth proportional to 1,215,884.34, 1,678,151.79 and 801,692.46 is: 1,106,488.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,884.34 : 1,678,151.79 = 801,692.46 : x
  2. Step 2: Convert to fraction form
    1,215,884.34/1,678,151.79 = 801,692.46/x
  3. Step 3: Cross multiply
    1,215,884.34x = 1,678,151.79 × 801,692.46
  4. Step 4: Simplify right side
    1,215,884.34x = 1,345,361,636,778.50
  5. Step 5: Solve for x
    x = 1,345,361,636,778.50/1,215,884.34
  6. Step 6: Final answer
    x = 1,106,488.17

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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.