Home / 1,066,811.20-1,600,447.20-318,932.80

Finding the Fourth Proportional to 1,066,811.20, 1,600,447.20 and 318,932.80

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Solution

The fourth proportional to 1,066,811.20, 1,600,447.20 and 318,932.80 is: 478,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,811.20 : 1,600,447.20 = 318,932.80 : x
  2. Step 2: Convert to fraction form
    1,066,811.20/1,600,447.20 = 318,932.80/x
  3. Step 3: Cross multiply
    1,066,811.20x = 1,600,447.20 × 318,932.80
  4. Step 4: Simplify right side
    1,066,811.20x = 510,435,106,748.16
  5. Step 5: Solve for x
    x = 510,435,106,748.16/1,066,811.20
  6. Step 6: Final answer
    x = 478,468.08

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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.