Home / 828,476.12-1,143,284.69-465,900.23

Finding the Fourth Proportional to 828,476.12, 1,143,284.69 and 465,900.23

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Solution

The fourth proportional to 828,476.12, 1,143,284.69 and 465,900.23 is: 642,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,476.12 : 1,143,284.69 = 465,900.23 : x
  2. Step 2: Convert to fraction form
    828,476.12/1,143,284.69 = 465,900.23/x
  3. Step 3: Cross multiply
    828,476.12x = 1,143,284.69 × 465,900.23
  4. Step 4: Simplify right side
    828,476.12x = 532,656,604,049.44
  5. Step 5: Solve for x
    x = 532,656,604,049.44/828,476.12
  6. Step 6: Final answer
    x = 642,935.37

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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.