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Finding the Fourth Proportional to 627,326.24, 865,718.08 and 340,851.11

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Solution

The fourth proportional to 627,326.24, 865,718.08 and 340,851.11 is: 470,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,326.24 : 865,718.08 = 340,851.11 : x
  2. Step 2: Convert to fraction form
    627,326.24/865,718.08 = 340,851.11/x
  3. Step 3: Cross multiply
    627,326.24x = 865,718.08 × 340,851.11
  4. Step 4: Simplify right side
    627,326.24x = 295,080,963,334.35
  5. Step 5: Solve for x
    x = 295,080,963,334.35/627,326.24
  6. Step 6: Final answer
    x = 470,378.80

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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.