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Finding the Fourth Proportional to 627,360.50, 865,761.54 and 340,880.52

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Solution

The fourth proportional to 627,360.50, 865,761.54 and 340,880.52 is: 470,417.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,360.50 : 865,761.54 = 340,880.52 : x
  2. Step 2: Convert to fraction form
    627,360.50/865,761.54 = 340,880.52/x
  3. Step 3: Cross multiply
    627,360.50x = 865,761.54 × 340,880.52
  4. Step 4: Simplify right side
    627,360.50x = 295,121,243,951.20
  5. Step 5: Solve for x
    x = 295,121,243,951.20/627,360.50
  6. Step 6: Final answer
    x = 470,417.32

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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.