Home / 721,070.98-1,081,523.85-188,643.40

Finding the Fourth Proportional to 721,070.98, 1,081,523.85 and 188,643.40

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Solution

The fourth proportional to 721,070.98, 1,081,523.85 and 188,643.40 is: 282,943.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,070.98 : 1,081,523.85 = 188,643.40 : x
  2. Step 2: Convert to fraction form
    721,070.98/1,081,523.85 = 188,643.40/x
  3. Step 3: Cross multiply
    721,070.98x = 1,081,523.85 × 188,643.40
  4. Step 4: Simplify right side
    721,070.98x = 204,022,332,833.87
  5. Step 5: Solve for x
    x = 204,022,332,833.87/721,070.98
  6. Step 6: Final answer
    x = 282,943.48

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1.5x scale

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.