Home / 961,786-1,441,741.40-400,980.88

Finding the Fourth Proportional to 961,786, 1,441,741.40 and 400,980.88

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Solution

The fourth proportional to 961,786, 1,441,741.40 and 400,980.88 is: 601,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,786 : 1,441,741.40 = 400,980.88 : x
  2. Step 2: Convert to fraction form
    961,786/1,441,741.40 = 400,980.88/x
  3. Step 3: Cross multiply
    961,786x = 1,441,741.40 × 400,980.88
  4. Step 4: Simplify right side
    961,786x = 578,110,735,304.43
  5. Step 5: Solve for x
    x = 578,110,735,304.43/961,786
  6. Step 6: Final answer
    x = 601,080.42

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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.