Home / 708,469.12-1,062,718.26-287,457.04

Finding the Fourth Proportional to 708,469.12, 1,062,718.26 and 287,457.04

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Solution

The fourth proportional to 708,469.12, 1,062,718.26 and 287,457.04 is: 431,191.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,469.12 : 1,062,718.26 = 287,457.04 : x
  2. Step 2: Convert to fraction form
    708,469.12/1,062,718.26 = 287,457.04/x
  3. Step 3: Cross multiply
    708,469.12x = 1,062,718.26 × 287,457.04
  4. Step 4: Simplify right side
    708,469.12x = 305,485,845,373.55
  5. Step 5: Solve for x
    x = 305,485,845,373.55/708,469.12
  6. Step 6: Final answer
    x = 431,191.48

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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.