Home / 1,100,466.40-1,650,699.60-679,979.20

Finding the Fourth Proportional to 1,100,466.40, 1,650,699.60 and 679,979.20

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Solution

The fourth proportional to 1,100,466.40, 1,650,699.60 and 679,979.20 is: 1,019,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,466.40 : 1,650,699.60 = 679,979.20 : x
  2. Step 2: Convert to fraction form
    1,100,466.40/1,650,699.60 = 679,979.20/x
  3. Step 3: Cross multiply
    1,100,466.40x = 1,650,699.60 × 679,979.20
  4. Step 4: Simplify right side
    1,100,466.40x = 1,122,441,393,448.32
  5. Step 5: Solve for x
    x = 1,122,441,393,448.32/1,100,466.40
  6. Step 6: Final answer
    x = 1,019,968.80

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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.