Home / 686,027.51-1,028,491.74-326,017.70

Finding the Fourth Proportional to 686,027.51, 1,028,491.74 and 326,017.70

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Solution

The fourth proportional to 686,027.51, 1,028,491.74 and 326,017.70 is: 488,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,027.51 : 1,028,491.74 = 326,017.70 : x
  2. Step 2: Convert to fraction form
    686,027.51/1,028,491.74 = 326,017.70/x
  3. Step 3: Cross multiply
    686,027.51x = 1,028,491.74 × 326,017.70
  4. Step 4: Simplify right side
    686,027.51x = 335,306,511,543.80
  5. Step 5: Solve for x
    x = 335,306,511,543.80/686,027.51
  6. Step 6: Final answer
    x = 488,765.40

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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.