Home / 1,120,082-1,680,291.48-361,669.28

Finding the Fourth Proportional to 1,120,082, 1,680,291.48 and 361,669.28

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Solution

The fourth proportional to 1,120,082, 1,680,291.48 and 361,669.28 is: 542,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,082 : 1,680,291.48 = 361,669.28 : x
  2. Step 2: Convert to fraction form
    1,120,082/1,680,291.48 = 361,669.28/x
  3. Step 3: Cross multiply
    1,120,082x = 1,680,291.48 × 361,669.28
  4. Step 4: Simplify right side
    1,120,082x = 607,709,809,761.74
  5. Step 5: Solve for x
    x = 607,709,809,761.74/1,120,082
  6. Step 6: Final answer
    x = 542,558.32

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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.