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Finding the Fourth Proportional to 703,727.65, 971,247.92 and 445,628.16

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Solution

The fourth proportional to 703,727.65, 971,247.92 and 445,628.16 is: 615,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,727.65 : 971,247.92 = 445,628.16 : x
  2. Step 2: Convert to fraction form
    703,727.65/971,247.92 = 445,628.16/x
  3. Step 3: Cross multiply
    703,727.65x = 971,247.92 × 445,628.16
  4. Step 4: Simplify right side
    703,727.65x = 432,815,418,533.65
  5. Step 5: Solve for x
    x = 432,815,418,533.65/703,727.65
  6. Step 6: Final answer
    x = 615,032.56

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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.