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Finding the Fourth Proportional to 713,671.50, 984,866.67 and 395,719.50

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Solution

The fourth proportional to 713,671.50, 984,866.67 and 395,719.50 is: 546,092.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,671.50 : 984,866.67 = 395,719.50 : x
  2. Step 2: Convert to fraction form
    713,671.50/984,866.67 = 395,719.50/x
  3. Step 3: Cross multiply
    713,671.50x = 984,866.67 × 395,719.50
  4. Step 4: Simplify right side
    713,671.50x = 389,730,946,219.07
  5. Step 5: Solve for x
    x = 389,730,946,219.07/713,671.50
  6. Step 6: Final answer
    x = 546,092.91

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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.