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Finding the Fourth Proportional to 702,929.56, 970,047.41 and 380,639.68

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Solution

The fourth proportional to 702,929.56, 970,047.41 and 380,639.68 is: 525,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,929.56 : 970,047.41 = 380,639.68 : x
  2. Step 2: Convert to fraction form
    702,929.56/970,047.41 = 380,639.68/x
  3. Step 3: Cross multiply
    702,929.56x = 970,047.41 × 380,639.68
  4. Step 4: Simplify right side
    702,929.56x = 369,238,535,727.23
  5. Step 5: Solve for x
    x = 369,238,535,727.23/702,929.56
  6. Step 6: Final answer
    x = 525,285.26

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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.