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Finding the Fourth Proportional to 524,940.90, 724,418.25 and 286,476.90

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Solution

The fourth proportional to 524,940.90, 724,418.25 and 286,476.90 is: 395,338.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,940.90 : 724,418.25 = 286,476.90 : x
  2. Step 2: Convert to fraction form
    524,940.90/724,418.25 = 286,476.90/x
  3. Step 3: Cross multiply
    524,940.90x = 724,418.25 × 286,476.90
  4. Step 4: Simplify right side
    524,940.90x = 207,529,094,563.43
  5. Step 5: Solve for x
    x = 207,529,094,563.43/524,940.90
  6. Step 6: Final answer
    x = 395,338.02

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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.