Home / 768,631.05-1,152,323.44-319,688.01

Finding the Fourth Proportional to 768,631.05, 1,152,323.44 and 319,688.01

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Solution

The fourth proportional to 768,631.05, 1,152,323.44 and 319,688.01 is: 479,272.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,631.05 : 1,152,323.44 = 319,688.01 : x
  2. Step 2: Convert to fraction form
    768,631.05/1,152,323.44 = 319,688.01/x
  3. Step 3: Cross multiply
    768,631.05x = 1,152,323.44 × 319,688.01
  4. Step 4: Simplify right side
    768,631.05x = 368,383,986,610.73
  5. Step 5: Solve for x
    x = 368,383,986,610.73/768,631.05
  6. Step 6: Final answer
    x = 479,272.84

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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.