Home / 1,203,485.12-1,804,761.12-642,213.44

Finding the Fourth Proportional to 1,203,485.12, 1,804,761.12 and 642,213.44

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Solution

The fourth proportional to 1,203,485.12, 1,804,761.12 and 642,213.44 is: 963,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,485.12 : 1,804,761.12 = 642,213.44 : x
  2. Step 2: Convert to fraction form
    1,203,485.12/1,804,761.12 = 642,213.44/x
  3. Step 3: Cross multiply
    1,203,485.12x = 1,804,761.12 × 642,213.44
  4. Step 4: Simplify right side
    1,203,485.12x = 1,159,041,847,253.45
  5. Step 5: Solve for x
    x = 1,159,041,847,253.45/1,203,485.12
  6. Step 6: Final answer
    x = 963,071.19

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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.