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Finding the Fourth Proportional to 703,603.37, 971,076.87 and 445,504.31

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Solution

The fourth proportional to 703,603.37, 971,076.87 and 445,504.31 is: 614,861.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,603.37 : 971,076.87 = 445,504.31 : x
  2. Step 2: Convert to fraction form
    703,603.37/971,076.87 = 445,504.31/x
  3. Step 3: Cross multiply
    703,603.37x = 971,076.87 × 445,504.31
  4. Step 4: Simplify right side
    703,603.37x = 432,618,926,070.93
  5. Step 5: Solve for x
    x = 432,618,926,070.93/703,603.37
  6. Step 6: Final answer
    x = 614,861.93

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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.