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Finding the Fourth Proportional to 662,649.94, 914,431.81 and 404,957.86

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Solution

The fourth proportional to 662,649.94, 914,431.81 and 404,957.86 is: 558,826.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,649.94 : 914,431.81 = 404,957.86 : x
  2. Step 2: Convert to fraction form
    662,649.94/914,431.81 = 404,957.86/x
  3. Step 3: Cross multiply
    662,649.94x = 914,431.81 × 404,957.86
  4. Step 4: Simplify right side
    662,649.94x = 370,306,348,893.53
  5. Step 5: Solve for x
    x = 370,306,348,893.53/662,649.94
  6. Step 6: Final answer
    x = 558,826.50

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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.