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Finding the Fourth Proportional to 703,268.68, 970,511.24 and 380,980.06

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Solution

The fourth proportional to 703,268.68, 970,511.24 and 380,980.06 is: 525,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,268.68 : 970,511.24 = 380,980.06 : x
  2. Step 2: Convert to fraction form
    703,268.68/970,511.24 = 380,980.06/x
  3. Step 3: Cross multiply
    703,268.68x = 970,511.24 × 380,980.06
  4. Step 4: Simplify right side
    703,268.68x = 369,745,430,445.87
  5. Step 5: Solve for x
    x = 369,745,430,445.87/703,268.68
  6. Step 6: Final answer
    x = 525,752.73

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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.