Home / 1,323,589.80-1,987,790.40-792,148.80

Finding the Fourth Proportional to 1,323,589.80, 1,987,790.40 and 792,148.80

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Solution

The fourth proportional to 1,323,589.80, 1,987,790.40 and 792,148.80 is: 1,189,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,589.80 : 1,987,790.40 = 792,148.80 : x
  2. Step 2: Convert to fraction form
    1,323,589.80/1,987,790.40 = 792,148.80/x
  3. Step 3: Cross multiply
    1,323,589.80x = 1,987,790.40 × 792,148.80
  4. Step 4: Simplify right side
    1,323,589.80x = 1,574,625,780,011.52
  5. Step 5: Solve for x
    x = 1,574,625,780,011.52/1,323,589.80
  6. Step 6: Final answer
    x = 1,189,662.98

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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.