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Finding the Fourth Proportional to 524,253.80, 722,990.16 and 388,625.60

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Solution

The fourth proportional to 524,253.80, 722,990.16 and 388,625.60 is: 535,947.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,253.80 : 722,990.16 = 388,625.60 : x
  2. Step 2: Convert to fraction form
    524,253.80/722,990.16 = 388,625.60/x
  3. Step 3: Cross multiply
    524,253.80x = 722,990.16 × 388,625.60
  4. Step 4: Simplify right side
    524,253.80x = 280,972,484,724.10
  5. Step 5: Solve for x
    x = 280,972,484,724.10/524,253.80
  6. Step 6: Final answer
    x = 535,947.45

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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.