Home / 828,513.08-1,143,214.80-465,915.38

Finding the Fourth Proportional to 828,513.08, 1,143,214.80 and 465,915.38

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Solution

The fourth proportional to 828,513.08, 1,143,214.80 and 465,915.38 is: 642,888.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,513.08 : 1,143,214.80 = 465,915.38 : x
  2. Step 2: Convert to fraction form
    828,513.08/1,143,214.80 = 465,915.38/x
  3. Step 3: Cross multiply
    828,513.08x = 1,143,214.80 × 465,915.38
  4. Step 4: Simplify right side
    828,513.08x = 532,641,357,963.62
  5. Step 5: Solve for x
    x = 532,641,357,963.62/828,513.08
  6. Step 6: Final answer
    x = 642,888.29

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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.