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Finding the Fourth Proportional to 703,606.37, 971,081.01 and 445,507.31

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Solution

The fourth proportional to 703,606.37, 971,081.01 and 445,507.31 is: 614,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,606.37 : 971,081.01 = 445,507.31 : x
  2. Step 2: Convert to fraction form
    703,606.37/971,081.01 = 445,507.31/x
  3. Step 3: Cross multiply
    703,606.37x = 971,081.01 × 445,507.31
  4. Step 4: Simplify right side
    703,606.37x = 432,623,690,984.89
  5. Step 5: Solve for x
    x = 432,623,690,984.89/703,606.37
  6. Step 6: Final answer
    x = 614,866.08

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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.