Home / 689,829.52-1,034,701.61-257,462.82

Finding the Fourth Proportional to 689,829.52, 1,034,701.61 and 257,462.82

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Solution

The fourth proportional to 689,829.52, 1,034,701.61 and 257,462.82 is: 386,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,829.52 : 1,034,701.61 = 257,462.82 : x
  2. Step 2: Convert to fraction form
    689,829.52/1,034,701.61 = 257,462.82/x
  3. Step 3: Cross multiply
    689,829.52x = 1,034,701.61 × 257,462.82
  4. Step 4: Simplify right side
    689,829.52x = 266,397,194,369.14
  5. Step 5: Solve for x
    x = 266,397,194,369.14/689,829.52
  6. Step 6: Final answer
    x = 386,178.30

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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.