Home / 805,459.41-1,208,161.74-206,426.45

Finding the Fourth Proportional to 805,459.41, 1,208,161.74 and 206,426.45

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Solution

The fourth proportional to 805,459.41, 1,208,161.74 and 206,426.45 is: 309,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,459.41 : 1,208,161.74 = 206,426.45 : x
  2. Step 2: Convert to fraction form
    805,459.41/1,208,161.74 = 206,426.45/x
  3. Step 3: Cross multiply
    805,459.41x = 1,208,161.74 × 206,426.45
  4. Step 4: Simplify right side
    805,459.41x = 249,396,539,014.02
  5. Step 5: Solve for x
    x = 249,396,539,014.02/805,459.41
  6. Step 6: Final answer
    x = 309,632.66

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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.