Home / 1,315,934.40-1,973,901.60-318,662.40

Finding the Fourth Proportional to 1,315,934.40, 1,973,901.60 and 318,662.40

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Solution

The fourth proportional to 1,315,934.40, 1,973,901.60 and 318,662.40 is: 477,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,934.40 : 1,973,901.60 = 318,662.40 : x
  2. Step 2: Convert to fraction form
    1,315,934.40/1,973,901.60 = 318,662.40/x
  3. Step 3: Cross multiply
    1,315,934.40x = 1,973,901.60 × 318,662.40
  4. Step 4: Simplify right side
    1,315,934.40x = 629,008,221,219.84
  5. Step 5: Solve for x
    x = 629,008,221,219.84/1,315,934.40
  6. Step 6: Final answer
    x = 477,993.60

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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.