Home / 781,497.12-1,077,955.92-494,718.24

Finding the Fourth Proportional to 781,497.12, 1,077,955.92 and 494,718.24

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Solution

The fourth proportional to 781,497.12, 1,077,955.92 and 494,718.24 is: 682,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,497.12 : 1,077,955.92 = 494,718.24 : x
  2. Step 2: Convert to fraction form
    781,497.12/1,077,955.92 = 494,718.24/x
  3. Step 3: Cross multiply
    781,497.12x = 1,077,955.92 × 494,718.24
  4. Step 4: Simplify right side
    781,497.12x = 533,284,455,539.98
  5. Step 5: Solve for x
    x = 533,284,455,539.98/781,497.12
  6. Step 6: Final answer
    x = 682,388.25

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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.