Home / 686,030.52-1,028,496.24-326,020.70

Finding the Fourth Proportional to 686,030.52, 1,028,496.24 and 326,020.70

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Solution

The fourth proportional to 686,030.52, 1,028,496.24 and 326,020.70 is: 488,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,030.52 : 1,028,496.24 = 326,020.70 : x
  2. Step 2: Convert to fraction form
    686,030.52/1,028,496.24 = 326,020.70/x
  3. Step 3: Cross multiply
    686,030.52x = 1,028,496.24 × 326,020.70
  4. Step 4: Simplify right side
    686,030.52x = 335,311,064,112.17
  5. Step 5: Solve for x
    x = 335,311,064,112.17/686,030.52
  6. Step 6: Final answer
    x = 488,769.89

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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.