Home / 1,580,722.80-2,364,085.80-1,328,780.40

Finding the Fourth Proportional to 1,580,722.80, 2,364,085.80 and 1,328,780.40

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Solution

The fourth proportional to 1,580,722.80, 2,364,085.80 and 1,328,780.40 is: 1,987,287.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,722.80 : 2,364,085.80 = 1,328,780.40 : x
  2. Step 2: Convert to fraction form
    1,580,722.80/2,364,085.80 = 1,328,780.40/x
  3. Step 3: Cross multiply
    1,580,722.80x = 2,364,085.80 × 1,328,780.40
  4. Step 4: Simplify right side
    1,580,722.80x = 3,141,350,874,958.32
  5. Step 5: Solve for x
    x = 3,141,350,874,958.32/1,580,722.80
  6. Step 6: Final answer
    x = 1,987,287.64

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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.