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Finding the Fourth Proportional to 703,063.77, 970,223.17 and 380,766.49

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Solution

The fourth proportional to 703,063.77, 970,223.17 and 380,766.49 is: 525,455.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,063.77 : 970,223.17 = 380,766.49 : x
  2. Step 2: Convert to fraction form
    703,063.77/970,223.17 = 380,766.49/x
  3. Step 3: Cross multiply
    703,063.77x = 970,223.17 × 380,766.49
  4. Step 4: Simplify right side
    703,063.77x = 369,428,470,957.57
  5. Step 5: Solve for x
    x = 369,428,470,957.57/703,063.77
  6. Step 6: Final answer
    x = 525,455.14

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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.