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Finding the Fourth Proportional to 703,225.64, 970,212.66 and 397,257.32

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Solution

The fourth proportional to 703,225.64, 970,212.66 and 397,257.32 is: 548,080.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,225.64 : 970,212.66 = 397,257.32 : x
  2. Step 2: Convert to fraction form
    703,225.64/970,212.66 = 397,257.32/x
  3. Step 3: Cross multiply
    703,225.64x = 970,212.66 × 397,257.32
  4. Step 4: Simplify right side
    703,225.64x = 385,424,081,141.67
  5. Step 5: Solve for x
    x = 385,424,081,141.67/703,225.64
  6. Step 6: Final answer
    x = 548,080.25

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Double scale
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1.5x scale

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.