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Finding the Fourth Proportional to 541,256.40, 810,329.40 and 485,269.20

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Solution

The fourth proportional to 541,256.40, 810,329.40 and 485,269.20 is: 726,509.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,256.40 : 810,329.40 = 485,269.20 : x
  2. Step 2: Convert to fraction form
    541,256.40/810,329.40 = 485,269.20/x
  3. Step 3: Cross multiply
    541,256.40x = 810,329.40 × 485,269.20
  4. Step 4: Simplify right side
    541,256.40x = 393,227,899,674.48
  5. Step 5: Solve for x
    x = 393,227,899,674.48/541,256.40
  6. Step 6: Final answer
    x = 726,509.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.