Home / 1,287,241.20-1,930,799.04-477,783.24

Finding the Fourth Proportional to 1,287,241.20, 1,930,799.04 and 477,783.24

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Solution

The fourth proportional to 1,287,241.20, 1,930,799.04 and 477,783.24 is: 716,651.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,241.20 : 1,930,799.04 = 477,783.24 : x
  2. Step 2: Convert to fraction form
    1,287,241.20/1,930,799.04 = 477,783.24/x
  3. Step 3: Cross multiply
    1,287,241.20x = 1,930,799.04 × 477,783.24
  4. Step 4: Simplify right side
    1,287,241.20x = 922,503,421,120.09
  5. Step 5: Solve for x
    x = 922,503,421,120.09/1,287,241.20
  6. Step 6: Final answer
    x = 716,651.57

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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.