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Finding the Fourth Proportional to 543,718.05, 750,310.20 and 302,016.21

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Solution

The fourth proportional to 543,718.05, 750,310.20 and 302,016.21 is: 416,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,718.05 : 750,310.20 = 302,016.21 : x
  2. Step 2: Convert to fraction form
    543,718.05/750,310.20 = 302,016.21/x
  3. Step 3: Cross multiply
    543,718.05x = 750,310.20 × 302,016.21
  4. Step 4: Simplify right side
    543,718.05x = 226,605,842,928.34
  5. Step 5: Solve for x
    x = 226,605,842,928.34/543,718.05
  6. Step 6: Final answer
    x = 416,770.87

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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.