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Finding the Fourth Proportional to 702,981.96, 970,116.04 and 380,692.58

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Solution

The fourth proportional to 702,981.96, 970,116.04 and 380,692.58 is: 525,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,981.96 : 970,116.04 = 380,692.58 : x
  2. Step 2: Convert to fraction form
    702,981.96/970,116.04 = 380,692.58/x
  3. Step 3: Cross multiply
    702,981.96x = 970,116.04 × 380,692.58
  4. Step 4: Simplify right side
    702,981.96x = 369,315,978,166.98
  5. Step 5: Solve for x
    x = 369,315,978,166.98/702,981.96
  6. Step 6: Final answer
    x = 525,356.27

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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.