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Finding the Fourth Proportional to 840,690.63, 1,158,797.48 and 568,659.15

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Solution

The fourth proportional to 840,690.63, 1,158,797.48 and 568,659.15 is: 783,832.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,690.63 : 1,158,797.48 = 568,659.15 : x
  2. Step 2: Convert to fraction form
    840,690.63/1,158,797.48 = 568,659.15/x
  3. Step 3: Cross multiply
    840,690.63x = 1,158,797.48 × 568,659.15
  4. Step 4: Simplify right side
    840,690.63x = 658,960,787,155.65
  5. Step 5: Solve for x
    x = 658,960,787,155.65/840,690.63
  6. Step 6: Final answer
    x = 783,832.68

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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.