Home / 984,577.51-1,358,969.78-641,268.94

Finding the Fourth Proportional to 984,577.51, 1,358,969.78 and 641,268.94

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Solution

The fourth proportional to 984,577.51, 1,358,969.78 and 641,268.94 is: 885,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,577.51 : 1,358,969.78 = 641,268.94 : x
  2. Step 2: Convert to fraction form
    984,577.51/1,358,969.78 = 641,268.94/x
  3. Step 3: Cross multiply
    984,577.51x = 1,358,969.78 × 641,268.94
  4. Step 4: Simplify right side
    984,577.51x = 871,465,110,312.63
  5. Step 5: Solve for x
    x = 871,465,110,312.63/984,577.51
  6. Step 6: Final answer
    x = 885,115.80

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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.