Home / 1,286,151.79-1,929,228.43-326,679.36

Finding the Fourth Proportional to 1,286,151.79, 1,929,228.43 and 326,679.36

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Solution

The fourth proportional to 1,286,151.79, 1,929,228.43 and 326,679.36 is: 490,019.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,151.79 : 1,929,228.43 = 326,679.36 : x
  2. Step 2: Convert to fraction form
    1,286,151.79/1,929,228.43 = 326,679.36/x
  3. Step 3: Cross multiply
    1,286,151.79x = 1,929,228.43 × 326,679.36
  4. Step 4: Simplify right side
    1,286,151.79x = 630,239,099,160.06
  5. Step 5: Solve for x
    x = 630,239,099,160.06/1,286,151.79
  6. Step 6: Final answer
    x = 490,019.22

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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.