Home / 3,980,710.20-5,971,065.30-988,894.20

Finding the Fourth Proportional to 3,980,710.20, 5,971,065.30 and 988,894.20

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Solution

The fourth proportional to 3,980,710.20, 5,971,065.30 and 988,894.20 is: 1,483,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,710.20 : 5,971,065.30 = 988,894.20 : x
  2. Step 2: Convert to fraction form
    3,980,710.20/5,971,065.30 = 988,894.20/x
  3. Step 3: Cross multiply
    3,980,710.20x = 5,971,065.30 × 988,894.20
  4. Step 4: Simplify right side
    3,980,710.20x = 5,904,751,842,991.26
  5. Step 5: Solve for x
    x = 5,904,751,842,991.26/3,980,710.20
  6. Step 6: Final answer
    x = 1,483,341.30

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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.