Home / 1,308,857.96-1,806,200.16-728,078.24

Finding the Fourth Proportional to 1,308,857.96, 1,806,200.16 and 728,078.24

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Solution

The fourth proportional to 1,308,857.96, 1,806,200.16 and 728,078.24 is: 1,004,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,857.96 : 1,806,200.16 = 728,078.24 : x
  2. Step 2: Convert to fraction form
    1,308,857.96/1,806,200.16 = 728,078.24/x
  3. Step 3: Cross multiply
    1,308,857.96x = 1,806,200.16 × 728,078.24
  4. Step 4: Simplify right side
    1,308,857.96x = 1,315,055,024,549.52
  5. Step 5: Solve for x
    x = 1,315,055,024,549.52/1,308,857.96
  6. Step 6: Final answer
    x = 1,004,734.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.