Home / 686,200.72-1,028,950.08-286,732.48

Finding the Fourth Proportional to 686,200.72, 1,028,950.08 and 286,732.48

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Solution

The fourth proportional to 686,200.72, 1,028,950.08 and 286,732.48 is: 429,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,200.72 : 1,028,950.08 = 286,732.48 : x
  2. Step 2: Convert to fraction form
    686,200.72/1,028,950.08 = 286,732.48/x
  3. Step 3: Cross multiply
    686,200.72x = 1,028,950.08 × 286,732.48
  4. Step 4: Simplify right side
    686,200.72x = 295,033,408,234.60
  5. Step 5: Solve for x
    x = 295,033,408,234.60/686,200.72
  6. Step 6: Final answer
    x = 429,952.05

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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.