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Finding the Fourth Proportional to 702,957.07, 970,081.28 and 380,667.52

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Solution

The fourth proportional to 702,957.07, 970,081.28 and 380,667.52 is: 525,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,957.07 : 970,081.28 = 380,667.52 : x
  2. Step 2: Convert to fraction form
    702,957.07/970,081.28 = 380,667.52/x
  3. Step 3: Cross multiply
    702,957.07x = 970,081.28 × 380,667.52
  4. Step 4: Simplify right side
    702,957.07x = 369,278,435,056.03
  5. Step 5: Solve for x
    x = 369,278,435,056.03/702,957.07
  6. Step 6: Final answer
    x = 525,321.46

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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.