Home / 968,690.35-1,336,977.75-641,426.12

Finding the Fourth Proportional to 968,690.35, 1,336,977.75 and 641,426.12

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Solution

The fourth proportional to 968,690.35, 1,336,977.75 and 641,426.12 is: 885,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,690.35 : 1,336,977.75 = 641,426.12 : x
  2. Step 2: Convert to fraction form
    968,690.35/1,336,977.75 = 641,426.12/x
  3. Step 3: Cross multiply
    968,690.35x = 1,336,977.75 × 641,426.12
  4. Step 4: Simplify right side
    968,690.35x = 857,572,455,355.43
  5. Step 5: Solve for x
    x = 857,572,455,355.43/968,690.35
  6. Step 6: Final answer
    x = 885,290.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.