Home / 1,230,230.70-1,845,346.05-1,120,005.90

Finding the Fourth Proportional to 1,230,230.70, 1,845,346.05 and 1,120,005.90

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Solution

The fourth proportional to 1,230,230.70, 1,845,346.05 and 1,120,005.90 is: 1,680,008.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,230.70 : 1,845,346.05 = 1,120,005.90 : x
  2. Step 2: Convert to fraction form
    1,230,230.70/1,845,346.05 = 1,120,005.90/x
  3. Step 3: Cross multiply
    1,230,230.70x = 1,845,346.05 × 1,120,005.90
  4. Step 4: Simplify right side
    1,230,230.70x = 2,066,798,463,541.69
  5. Step 5: Solve for x
    x = 2,066,798,463,541.69/1,230,230.70
  6. Step 6: Final answer
    x = 1,680,008.85

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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.