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Finding the Fourth Proportional to 702,934.38, 970,054.05 and 380,644.49

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Solution

The fourth proportional to 702,934.38, 970,054.05 and 380,644.49 is: 525,291.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,934.38 : 970,054.05 = 380,644.49 : x
  2. Step 2: Convert to fraction form
    702,934.38/970,054.05 = 380,644.49/x
  3. Step 3: Cross multiply
    702,934.38x = 970,054.05 × 380,644.49
  4. Step 4: Simplify right side
    702,934.38x = 369,245,731,559.82
  5. Step 5: Solve for x
    x = 369,245,731,559.82/702,934.38
  6. Step 6: Final answer
    x = 525,291.89

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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.