Home / 784,568.64-1,176,736.32-285,816

Finding the Fourth Proportional to 784,568.64, 1,176,736.32 and 285,816

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Solution

The fourth proportional to 784,568.64, 1,176,736.32 and 285,816 is: 428,681.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,568.64 : 1,176,736.32 = 285,816 : x
  2. Step 2: Convert to fraction form
    784,568.64/1,176,736.32 = 285,816/x
  3. Step 3: Cross multiply
    784,568.64x = 1,176,736.32 × 285,816
  4. Step 4: Simplify right side
    784,568.64x = 336,330,068,037.12
  5. Step 5: Solve for x
    x = 336,330,068,037.12/784,568.64
  6. Step 6: Final answer
    x = 428,681.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.