Home / 698,865.66-1,048,783.14-319,832.64

Finding the Fourth Proportional to 698,865.66, 1,048,783.14 and 319,832.64

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Solution

The fourth proportional to 698,865.66, 1,048,783.14 and 319,832.64 is: 479,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,865.66 : 1,048,783.14 = 319,832.64 : x
  2. Step 2: Convert to fraction form
    698,865.66/1,048,783.14 = 319,832.64/x
  3. Step 3: Cross multiply
    698,865.66x = 1,048,783.14 × 319,832.64
  4. Step 4: Simplify right side
    698,865.66x = 335,435,080,453.69
  5. Step 5: Solve for x
    x = 335,435,080,453.69/698,865.66
  6. Step 6: Final answer
    x = 479,970.76

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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.