Home / 1,121,772.13-1,682,692.37-438,631.71

Finding the Fourth Proportional to 1,121,772.13, 1,682,692.37 and 438,631.71

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Solution

The fourth proportional to 1,121,772.13, 1,682,692.37 and 438,631.71 is: 657,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,772.13 : 1,682,692.37 = 438,631.71 : x
  2. Step 2: Convert to fraction form
    1,121,772.13/1,682,692.37 = 438,631.71/x
  3. Step 3: Cross multiply
    1,121,772.13x = 1,682,692.37 × 438,631.71
  4. Step 4: Simplify right side
    1,121,772.13x = 738,082,237,463.77
  5. Step 5: Solve for x
    x = 738,082,237,463.77/1,121,772.13
  6. Step 6: Final answer
    x = 657,960.93

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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.