Home / 1,230,209.20-1,845,313.80-751,912.30

Finding the Fourth Proportional to 1,230,209.20, 1,845,313.80 and 751,912.30

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Solution

The fourth proportional to 1,230,209.20, 1,845,313.80 and 751,912.30 is: 1,127,868.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,209.20 : 1,845,313.80 = 751,912.30 : x
  2. Step 2: Convert to fraction form
    1,230,209.20/1,845,313.80 = 751,912.30/x
  3. Step 3: Cross multiply
    1,230,209.20x = 1,845,313.80 × 751,912.30
  4. Step 4: Simplify right side
    1,230,209.20x = 1,387,514,143,579.74
  5. Step 5: Solve for x
    x = 1,387,514,143,579.74/1,230,209.20
  6. Step 6: Final answer
    x = 1,127,868.45

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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.