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Finding the Fourth Proportional to 540,729.80, 746,211.96 and 299,028.63

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Solution

The fourth proportional to 540,729.80, 746,211.96 and 299,028.63 is: 412,662.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,729.80 : 746,211.96 = 299,028.63 : x
  2. Step 2: Convert to fraction form
    540,729.80/746,211.96 = 299,028.63/x
  3. Step 3: Cross multiply
    540,729.80x = 746,211.96 × 299,028.63
  4. Step 4: Simplify right side
    540,729.80x = 223,138,740,088.42
  5. Step 5: Solve for x
    x = 223,138,740,088.42/540,729.80
  6. Step 6: Final answer
    x = 412,662.18

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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.