Home / 805,356.27-1,208,006.46-206,322.39

Finding the Fourth Proportional to 805,356.27, 1,208,006.46 and 206,322.39

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Solution

The fourth proportional to 805,356.27, 1,208,006.46 and 206,322.39 is: 309,476.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,356.27 : 1,208,006.46 = 206,322.39 : x
  2. Step 2: Convert to fraction form
    805,356.27/1,208,006.46 = 206,322.39/x
  3. Step 3: Cross multiply
    805,356.27x = 1,208,006.46 × 206,322.39
  4. Step 4: Simplify right side
    805,356.27x = 249,238,779,962.64
  5. Step 5: Solve for x
    x = 249,238,779,962.64/805,356.27
  6. Step 6: Final answer
    x = 309,476.43

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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.