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Finding the Fourth Proportional to 713,537.31, 984,995.46 and 499,517.49

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Solution

The fourth proportional to 713,537.31, 984,995.46 and 499,517.49 is: 689,553.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,537.31 : 984,995.46 = 499,517.49 : x
  2. Step 2: Convert to fraction form
    713,537.31/984,995.46 = 499,517.49/x
  3. Step 3: Cross multiply
    713,537.31x = 984,995.46 × 499,517.49
  4. Step 4: Simplify right side
    713,537.31x = 492,022,459,840.60
  5. Step 5: Solve for x
    x = 492,022,459,840.60/713,537.31
  6. Step 6: Final answer
    x = 689,553.93

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1.5x scale

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.