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Finding the Fourth Proportional to 703,268.77, 970,509.89 and 380,980.16

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Solution

The fourth proportional to 703,268.77, 970,509.89 and 380,980.16 is: 525,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,268.77 : 970,509.89 = 380,980.16 : x
  2. Step 2: Convert to fraction form
    703,268.77/970,509.89 = 380,980.16/x
  3. Step 3: Cross multiply
    703,268.77x = 970,509.89 × 380,980.16
  4. Step 4: Simplify right side
    703,268.77x = 369,745,011,268.88
  5. Step 5: Solve for x
    x = 369,745,011,268.88/703,268.77
  6. Step 6: Final answer
    x = 525,752.07

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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.