Home / 1,987,218.30-2,980,827.45-491,310.30

Finding the Fourth Proportional to 1,987,218.30, 2,980,827.45 and 491,310.30

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Solution

The fourth proportional to 1,987,218.30, 2,980,827.45 and 491,310.30 is: 736,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,218.30 : 2,980,827.45 = 491,310.30 : x
  2. Step 2: Convert to fraction form
    1,987,218.30/2,980,827.45 = 491,310.30/x
  3. Step 3: Cross multiply
    1,987,218.30x = 2,980,827.45 × 491,310.30
  4. Step 4: Simplify right side
    1,987,218.30x = 1,464,511,228,707.74
  5. Step 5: Solve for x
    x = 1,464,511,228,707.74/1,987,218.30
  6. Step 6: Final answer
    x = 736,965.45

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Double scale
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Similar ratio
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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.