Home / 740,648.40-1,110,972.60-403,850.40

Finding the Fourth Proportional to 740,648.40, 1,110,972.60 and 403,850.40

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Solution

The fourth proportional to 740,648.40, 1,110,972.60 and 403,850.40 is: 605,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,648.40 : 1,110,972.60 = 403,850.40 : x
  2. Step 2: Convert to fraction form
    740,648.40/1,110,972.60 = 403,850.40/x
  3. Step 3: Cross multiply
    740,648.40x = 1,110,972.60 × 403,850.40
  4. Step 4: Simplify right side
    740,648.40x = 448,666,728,899.04
  5. Step 5: Solve for x
    x = 448,666,728,899.04/740,648.40
  6. Step 6: Final answer
    x = 605,775.60

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Double scale
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Similar ratio
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1.5x scale

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.