Home / 903,284.34-1,243,403.64-780,720.81

Finding the Fourth Proportional to 903,284.34, 1,243,403.64 and 780,720.81

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Solution

The fourth proportional to 903,284.34, 1,243,403.64 and 780,720.81 is: 1,074,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,284.34 : 1,243,403.64 = 780,720.81 : x
  2. Step 2: Convert to fraction form
    903,284.34/1,243,403.64 = 780,720.81/x
  3. Step 3: Cross multiply
    903,284.34x = 1,243,403.64 × 780,720.81
  4. Step 4: Simplify right side
    903,284.34x = 970,751,096,977.75
  5. Step 5: Solve for x
    x = 970,751,096,977.75/903,284.34
  6. Step 6: Final answer
    x = 1,074,690.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.