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Finding the Fourth Proportional to 547,981.04, 756,198.76 and 306,264.56

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Solution

The fourth proportional to 547,981.04, 756,198.76 and 306,264.56 is: 422,636.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,981.04 : 756,198.76 = 306,264.56 : x
  2. Step 2: Convert to fraction form
    547,981.04/756,198.76 = 306,264.56/x
  3. Step 3: Cross multiply
    547,981.04x = 756,198.76 × 306,264.56
  4. Step 4: Simplify right side
    547,981.04x = 231,596,880,503.95
  5. Step 5: Solve for x
    x = 231,596,880,503.95/547,981.04
  6. Step 6: Final answer
    x = 422,636.67

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Similar ratio
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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.