Home / 313,799.40-471,089.04-312,360.84

Finding the Fourth Proportional to 313,799.40, 471,089.04 and 312,360.84

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Solution

The fourth proportional to 313,799.40, 471,089.04 and 312,360.84 is: 468,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,799.40 : 471,089.04 = 312,360.84 : x
  2. Step 2: Convert to fraction form
    313,799.40/471,089.04 = 312,360.84/x
  3. Step 3: Cross multiply
    313,799.40x = 471,089.04 × 312,360.84
  4. Step 4: Simplify right side
    313,799.40x = 147,149,768,249.19
  5. Step 5: Solve for x
    x = 147,149,768,249.19/313,799.40
  6. Step 6: Final answer
    x = 468,929.41

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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.