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Finding the Fourth Proportional to 841,390.96, 1,161,120.96 and 459,409.60

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Solution

The fourth proportional to 841,390.96, 1,161,120.96 and 459,409.60 is: 633,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,390.96 : 1,161,120.96 = 459,409.60 : x
  2. Step 2: Convert to fraction form
    841,390.96/1,161,120.96 = 459,409.60/x
  3. Step 3: Cross multiply
    841,390.96x = 1,161,120.96 × 459,409.60
  4. Step 4: Simplify right side
    841,390.96x = 533,430,115,785.22
  5. Step 5: Solve for x
    x = 533,430,115,785.22/841,390.96
  6. Step 6: Final answer
    x = 633,986.03

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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.