Home / 1,688,272.88-2,531,643.86-728,275.56

Finding the Fourth Proportional to 1,688,272.88, 2,531,643.86 and 728,275.56

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Solution

The fourth proportional to 1,688,272.88, 2,531,643.86 and 728,275.56 is: 1,092,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,272.88 : 2,531,643.86 = 728,275.56 : x
  2. Step 2: Convert to fraction form
    1,688,272.88/2,531,643.86 = 728,275.56/x
  3. Step 3: Cross multiply
    1,688,272.88x = 2,531,643.86 × 728,275.56
  4. Step 4: Simplify right side
    1,688,272.88x = 1,843,734,342,189.09
  5. Step 5: Solve for x
    x = 1,843,734,342,189.09/1,688,272.88
  6. Step 6: Final answer
    x = 1,092,083.14

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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.