Home / 805,369.74-1,208,026.65-206,335.86

Finding the Fourth Proportional to 805,369.74, 1,208,026.65 and 206,335.86

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Solution

The fourth proportional to 805,369.74, 1,208,026.65 and 206,335.86 is: 309,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,369.74 : 1,208,026.65 = 206,335.86 : x
  2. Step 2: Convert to fraction form
    805,369.74/1,208,026.65 = 206,335.86/x
  3. Step 3: Cross multiply
    805,369.74x = 1,208,026.65 × 206,335.86
  4. Step 4: Simplify right side
    805,369.74x = 249,259,217,730.67
  5. Step 5: Solve for x
    x = 249,259,217,730.67/805,369.74
  6. Step 6: Final answer
    x = 309,496.63

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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.