Home / 1,315,401.92-1,973,103.84-318,130.88

Finding the Fourth Proportional to 1,315,401.92, 1,973,103.84 and 318,130.88

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Solution

The fourth proportional to 1,315,401.92, 1,973,103.84 and 318,130.88 is: 477,196.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,401.92 : 1,973,103.84 = 318,130.88 : x
  2. Step 2: Convert to fraction form
    1,315,401.92/1,973,103.84 = 318,130.88/x
  3. Step 3: Cross multiply
    1,315,401.92x = 1,973,103.84 × 318,130.88
  4. Step 4: Simplify right side
    1,315,401.92x = 627,705,260,950.58
  5. Step 5: Solve for x
    x = 627,705,260,950.58/1,315,401.92
  6. Step 6: Final answer
    x = 477,196.55

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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.