Home / 828,536.70-1,143,369.80-465,960.45

Finding the Fourth Proportional to 828,536.70, 1,143,369.80 and 465,960.45

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Solution

The fourth proportional to 828,536.70, 1,143,369.80 and 465,960.45 is: 643,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,536.70 : 1,143,369.80 = 465,960.45 : x
  2. Step 2: Convert to fraction form
    828,536.70/1,143,369.80 = 465,960.45/x
  3. Step 3: Cross multiply
    828,536.70x = 1,143,369.80 × 465,960.45
  4. Step 4: Simplify right side
    828,536.70x = 532,765,104,194.61
  5. Step 5: Solve for x
    x = 532,765,104,194.61/828,536.70
  6. Step 6: Final answer
    x = 643,019.32

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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.