Home / 547,976.61-756,205.20-306,259.11

Finding the Fourth Proportional to 547,976.61, 756,205.20 and 306,259.11

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Solution

The fourth proportional to 547,976.61, 756,205.20 and 306,259.11 is: 422,636.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,976.61 : 756,205.20 = 306,259.11 : x
  2. Step 2: Convert to fraction form
    547,976.61/756,205.20 = 306,259.11/x
  3. Step 3: Cross multiply
    547,976.61x = 756,205.20 × 306,259.11
  4. Step 4: Simplify right side
    547,976.61x = 231,594,731,529.37
  5. Step 5: Solve for x
    x = 231,594,731,529.37/547,976.61
  6. Step 6: Final answer
    x = 422,636.16

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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.