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Finding the Fourth Proportional to 702,933.03, 970,045.82 and 380,643.11

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Solution

The fourth proportional to 702,933.03, 970,045.82 and 380,643.11 is: 525,286.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,933.03 : 970,045.82 = 380,643.11 : x
  2. Step 2: Convert to fraction form
    702,933.03/970,045.82 = 380,643.11/x
  3. Step 3: Cross multiply
    702,933.03x = 970,045.82 × 380,643.11
  4. Step 4: Simplify right side
    702,933.03x = 369,241,257,767.30
  5. Step 5: Solve for x
    x = 369,241,257,767.30/702,933.03
  6. Step 6: Final answer
    x = 525,286.54

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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.