Home / 905,018.67-1,358,099.73-505,921.28

Finding the Fourth Proportional to 905,018.67, 1,358,099.73 and 505,921.28

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Solution

The fourth proportional to 905,018.67, 1,358,099.73 and 505,921.28 is: 759,201.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,018.67 : 1,358,099.73 = 505,921.28 : x
  2. Step 2: Convert to fraction form
    905,018.67/1,358,099.73 = 505,921.28/x
  3. Step 3: Cross multiply
    905,018.67x = 1,358,099.73 × 505,921.28
  4. Step 4: Simplify right side
    905,018.67x = 687,091,546,978.76
  5. Step 5: Solve for x
    x = 687,091,546,978.76/905,018.67
  6. Step 6: Final answer
    x = 759,201.52

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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.