Home / 762,700.87-1,143,252.88-257,086.98

Finding the Fourth Proportional to 762,700.87, 1,143,252.88 and 257,086.98

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Solution

The fourth proportional to 762,700.87, 1,143,252.88 and 257,086.98 is: 385,361.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,700.87 : 1,143,252.88 = 257,086.98 : x
  2. Step 2: Convert to fraction form
    762,700.87/1,143,252.88 = 257,086.98/x
  3. Step 3: Cross multiply
    762,700.87x = 1,143,252.88 × 257,086.98
  4. Step 4: Simplify right side
    762,700.87x = 293,915,426,275.80
  5. Step 5: Solve for x
    x = 293,915,426,275.80/762,700.87
  6. Step 6: Final answer
    x = 385,361.33

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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.