Home / 762,855.54-1,143,826.29-257,405.28

Finding the Fourth Proportional to 762,855.54, 1,143,826.29 and 257,405.28

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Solution

The fourth proportional to 762,855.54, 1,143,826.29 and 257,405.28 is: 385,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,855.54 : 1,143,826.29 = 257,405.28 : x
  2. Step 2: Convert to fraction form
    762,855.54/1,143,826.29 = 257,405.28/x
  3. Step 3: Cross multiply
    762,855.54x = 1,143,826.29 × 257,405.28
  4. Step 4: Simplify right side
    762,855.54x = 294,426,926,448.81
  5. Step 5: Solve for x
    x = 294,426,926,448.81/762,855.54
  6. Step 6: Final answer
    x = 385,953.71

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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.