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Finding the Fourth Proportional to 703,955.88, 972,260.97 and 477,207.72

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Solution

The fourth proportional to 703,955.88, 972,260.97 and 477,207.72 is: 659,090.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,955.88 : 972,260.97 = 477,207.72 : x
  2. Step 2: Convert to fraction form
    703,955.88/972,260.97 = 477,207.72/x
  3. Step 3: Cross multiply
    703,955.88x = 972,260.97 × 477,207.72
  4. Step 4: Simplify right side
    703,955.88x = 463,970,440,738.69
  5. Step 5: Solve for x
    x = 463,970,440,738.69/703,955.88
  6. Step 6: Final answer
    x = 659,090.23

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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.