Home / 689,080.50-1,033,830.41-352,357.56

Finding the Fourth Proportional to 689,080.50, 1,033,830.41 and 352,357.56

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Solution

The fourth proportional to 689,080.50, 1,033,830.41 and 352,357.56 is: 528,643.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,080.50 : 1,033,830.41 = 352,357.56 : x
  2. Step 2: Convert to fraction form
    689,080.50/1,033,830.41 = 352,357.56/x
  3. Step 3: Cross multiply
    689,080.50x = 1,033,830.41 × 352,357.56
  4. Step 4: Simplify right side
    689,080.50x = 364,277,958,959.61
  5. Step 5: Solve for x
    x = 364,277,958,959.61/689,080.50
  6. Step 6: Final answer
    x = 528,643.55

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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.