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Finding the Fourth Proportional to 703,242.84, 970,479.78 and 380,952.96

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Solution

The fourth proportional to 703,242.84, 970,479.78 and 380,952.96 is: 525,717.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,242.84 : 970,479.78 = 380,952.96 : x
  2. Step 2: Convert to fraction form
    703,242.84/970,479.78 = 380,952.96/x
  3. Step 3: Cross multiply
    703,242.84x = 970,479.78 × 380,952.96
  4. Step 4: Simplify right side
    703,242.84x = 369,707,144,811.15
  5. Step 5: Solve for x
    x = 369,707,144,811.15/703,242.84
  6. Step 6: Final answer
    x = 525,717.61

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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.