Home / 689,538.39-1,035,276.39-352,820.58

Finding the Fourth Proportional to 689,538.39, 1,035,276.39 and 352,820.58

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Solution

The fourth proportional to 689,538.39, 1,035,276.39 and 352,820.58 is: 529,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,538.39 : 1,035,276.39 = 352,820.58 : x
  2. Step 2: Convert to fraction form
    689,538.39/1,035,276.39 = 352,820.58/x
  3. Step 3: Cross multiply
    689,538.39x = 1,035,276.39 × 352,820.58
  4. Step 4: Simplify right side
    689,538.39x = 365,266,816,380.11
  5. Step 5: Solve for x
    x = 365,266,816,380.11/689,538.39
  6. Step 6: Final answer
    x = 529,726.58

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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.