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Finding the Fourth Proportional to 703,223.69, 970,453.35 and 380,933.79

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Solution

The fourth proportional to 703,223.69, 970,453.35 and 380,933.79 is: 525,691.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,223.69 : 970,453.35 = 380,933.79 : x
  2. Step 2: Convert to fraction form
    703,223.69/970,453.35 = 380,933.79/x
  3. Step 3: Cross multiply
    703,223.69x = 970,453.35 × 380,933.79
  4. Step 4: Simplify right side
    703,223.69x = 369,678,472,633.70
  5. Step 5: Solve for x
    x = 369,678,472,633.70/703,223.69
  6. Step 6: Final answer
    x = 525,691.16

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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.