Home / 1,128,455.64-1,692,792.54-329,718.96

Finding the Fourth Proportional to 1,128,455.64, 1,692,792.54 and 329,718.96

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Solution

The fourth proportional to 1,128,455.64, 1,692,792.54 and 329,718.96 is: 494,610.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,455.64 : 1,692,792.54 = 329,718.96 : x
  2. Step 2: Convert to fraction form
    1,128,455.64/1,692,792.54 = 329,718.96/x
  3. Step 3: Cross multiply
    1,128,455.64x = 1,692,792.54 × 329,718.96
  4. Step 4: Simplify right side
    1,128,455.64x = 558,145,795,784.56
  5. Step 5: Solve for x
    x = 558,145,795,784.56/1,128,455.64
  6. Step 6: Final answer
    x = 494,610.31

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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.