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Finding the Fourth Proportional to 698,086.40, 963,333.76 and 426,608.64

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Solution

The fourth proportional to 698,086.40, 963,333.76 and 426,608.64 is: 588,704.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,086.40 : 963,333.76 = 426,608.64 : x
  2. Step 2: Convert to fraction form
    698,086.40/963,333.76 = 426,608.64/x
  3. Step 3: Cross multiply
    698,086.40x = 963,333.76 × 426,608.64
  4. Step 4: Simplify right side
    698,086.40x = 410,966,505,219.69
  5. Step 5: Solve for x
    x = 410,966,505,219.69/698,086.40
  6. Step 6: Final answer
    x = 588,704.36

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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.