Home / 1,999,468.85-3,000,421.26-719,969.36

Finding the Fourth Proportional to 1,999,468.85, 3,000,421.26 and 719,969.36

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Solution

The fourth proportional to 1,999,468.85, 3,000,421.26 and 719,969.36 is: 1,080,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,468.85 : 3,000,421.26 = 719,969.36 : x
  2. Step 2: Convert to fraction form
    1,999,468.85/3,000,421.26 = 719,969.36/x
  3. Step 3: Cross multiply
    1,999,468.85x = 3,000,421.26 × 719,969.36
  4. Step 4: Simplify right side
    1,999,468.85x = 2,160,211,359,290.49
  5. Step 5: Solve for x
    x = 2,160,211,359,290.49/1,999,468.85
  6. Step 6: Final answer
    x = 1,080,392.61

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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.