Home / 1,271,421.20-1,906,922.20-418,503.96

Finding the Fourth Proportional to 1,271,421.20, 1,906,922.20 and 418,503.96

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Solution

The fourth proportional to 1,271,421.20, 1,906,922.20 and 418,503.96 is: 627,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,421.20 : 1,906,922.20 = 418,503.96 : x
  2. Step 2: Convert to fraction form
    1,271,421.20/1,906,922.20 = 418,503.96/x
  3. Step 3: Cross multiply
    1,271,421.20x = 1,906,922.20 × 418,503.96
  4. Step 4: Simplify right side
    1,271,421.20x = 798,054,492,111.91
  5. Step 5: Solve for x
    x = 798,054,492,111.91/1,271,421.20
  6. Step 6: Final answer
    x = 627,686.95

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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.