Home / 686,884.58-1,030,068.05-287,552.96

Finding the Fourth Proportional to 686,884.58, 1,030,068.05 and 287,552.96

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Solution

The fourth proportional to 686,884.58, 1,030,068.05 and 287,552.96 is: 431,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,884.58 : 1,030,068.05 = 287,552.96 : x
  2. Step 2: Convert to fraction form
    686,884.58/1,030,068.05 = 287,552.96/x
  3. Step 3: Cross multiply
    686,884.58x = 1,030,068.05 × 287,552.96
  4. Step 4: Simplify right side
    686,884.58x = 296,199,116,778.93
  5. Step 5: Solve for x
    x = 296,199,116,778.93/686,884.58
  6. Step 6: Final answer
    x = 431,221.09

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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.