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Finding the Fourth Proportional to 627,340.93, 865,718.01 and 340,863.07

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Solution

The fourth proportional to 627,340.93, 865,718.01 and 340,863.07 is: 470,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,340.93 : 865,718.01 = 340,863.07 : x
  2. Step 2: Convert to fraction form
    627,340.93/865,718.01 = 340,863.07/x
  3. Step 3: Cross multiply
    627,340.93x = 865,718.01 × 340,863.07
  4. Step 4: Simplify right side
    627,340.93x = 295,091,298,642.89
  5. Step 5: Solve for x
    x = 295,091,298,642.89/627,340.93
  6. Step 6: Final answer
    x = 470,384.26

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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.