Home / 1,290,370.28-1,780,199.52-746,405.06

Finding the Fourth Proportional to 1,290,370.28, 1,780,199.52 and 746,405.06

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Solution

The fourth proportional to 1,290,370.28, 1,780,199.52 and 746,405.06 is: 1,029,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,370.28 : 1,780,199.52 = 746,405.06 : x
  2. Step 2: Convert to fraction form
    1,290,370.28/1,780,199.52 = 746,405.06/x
  3. Step 3: Cross multiply
    1,290,370.28x = 1,780,199.52 × 746,405.06
  4. Step 4: Simplify right side
    1,290,370.28x = 1,328,749,929,537.57
  5. Step 5: Solve for x
    x = 1,328,749,929,537.57/1,290,370.28
  6. Step 6: Final answer
    x = 1,029,743.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.