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Finding the Fourth Proportional to 654,992.76, 903,880.75 and 368,512.17

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Solution

The fourth proportional to 654,992.76, 903,880.75 and 368,512.17 is: 508,541.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,992.76 : 903,880.75 = 368,512.17 : x
  2. Step 2: Convert to fraction form
    654,992.76/903,880.75 = 368,512.17/x
  3. Step 3: Cross multiply
    654,992.76x = 903,880.75 × 368,512.17
  4. Step 4: Simplify right side
    654,992.76x = 333,091,056,603.73
  5. Step 5: Solve for x
    x = 333,091,056,603.73/654,992.76
  6. Step 6: Final answer
    x = 508,541.59

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Double scale
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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.