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Finding the Fourth Proportional to 702,994.84, 970,131.39 and 380,703.94

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Solution

The fourth proportional to 702,994.84, 970,131.39 and 380,703.94 is: 525,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,994.84 : 970,131.39 = 380,703.94 : x
  2. Step 2: Convert to fraction form
    702,994.84/970,131.39 = 380,703.94/x
  3. Step 3: Cross multiply
    702,994.84x = 970,131.39 × 380,703.94
  4. Step 4: Simplify right side
    702,994.84x = 369,332,842,490.68
  5. Step 5: Solve for x
    x = 369,332,842,490.68/702,994.84
  6. Step 6: Final answer
    x = 525,370.63

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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.