Home / 1,316,729.80-1,973,912.10-518,555.80

Finding the Fourth Proportional to 1,316,729.80, 1,973,912.10 and 518,555.80

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Solution

The fourth proportional to 1,316,729.80, 1,973,912.10 and 518,555.80 is: 777,367.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,729.80 : 1,973,912.10 = 518,555.80 : x
  2. Step 2: Convert to fraction form
    1,316,729.80/1,973,912.10 = 518,555.80/x
  3. Step 3: Cross multiply
    1,316,729.80x = 1,973,912.10 × 518,555.80
  4. Step 4: Simplify right side
    1,316,729.80x = 1,023,583,568,145.18
  5. Step 5: Solve for x
    x = 1,023,583,568,145.18/1,316,729.80
  6. Step 6: Final answer
    x = 777,367.97

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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.