Home / 828,489.26-1,143,304.29-465,913.01

Finding the Fourth Proportional to 828,489.26, 1,143,304.29 and 465,913.01

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Solution

The fourth proportional to 828,489.26, 1,143,304.29 and 465,913.01 is: 642,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,489.26 : 1,143,304.29 = 465,913.01 : x
  2. Step 2: Convert to fraction form
    828,489.26/1,143,304.29 = 465,913.01/x
  3. Step 3: Cross multiply
    828,489.26x = 1,143,304.29 × 465,913.01
  4. Step 4: Simplify right side
    828,489.26x = 532,680,343,099.81
  5. Step 5: Solve for x
    x = 532,680,343,099.81/828,489.26
  6. Step 6: Final answer
    x = 642,953.83

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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.