Home / 1,086,906.80-1,630,360.20-686,248.40

Finding the Fourth Proportional to 1,086,906.80, 1,630,360.20 and 686,248.40

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Solution

The fourth proportional to 1,086,906.80, 1,630,360.20 and 686,248.40 is: 1,029,372.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,906.80 : 1,630,360.20 = 686,248.40 : x
  2. Step 2: Convert to fraction form
    1,086,906.80/1,630,360.20 = 686,248.40/x
  3. Step 3: Cross multiply
    1,086,906.80x = 1,630,360.20 × 686,248.40
  4. Step 4: Simplify right side
    1,086,906.80x = 1,118,832,078,673.68
  5. Step 5: Solve for x
    x = 1,118,832,078,673.68/1,086,906.80
  6. Step 6: Final answer
    x = 1,029,372.60

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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.