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Finding the Fourth Proportional to 627,359.14, 865,760.88 and 340,879.22

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Solution

The fourth proportional to 627,359.14, 865,760.88 and 340,879.22 is: 470,416.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,359.14 : 865,760.88 = 340,879.22 : x
  2. Step 2: Convert to fraction form
    627,359.14/865,760.88 = 340,879.22/x
  3. Step 3: Cross multiply
    627,359.14x = 865,760.88 × 340,879.22
  4. Step 4: Simplify right side
    627,359.14x = 295,119,893,480.91
  5. Step 5: Solve for x
    x = 295,119,893,480.91/627,359.14
  6. Step 6: Final answer
    x = 470,416.19

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1.5x scale

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.