Home / 809,212.28-1,117,090.86-469,614.92

Finding the Fourth Proportional to 809,212.28, 1,117,090.86 and 469,614.92

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Solution

The fourth proportional to 809,212.28, 1,117,090.86 and 469,614.92 is: 648,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,212.28 : 1,117,090.86 = 469,614.92 : x
  2. Step 2: Convert to fraction form
    809,212.28/1,117,090.86 = 469,614.92/x
  3. Step 3: Cross multiply
    809,212.28x = 1,117,090.86 × 469,614.92
  4. Step 4: Simplify right side
    809,212.28x = 524,602,534,851.63
  5. Step 5: Solve for x
    x = 524,602,534,851.63/809,212.28
  6. Step 6: Final answer
    x = 648,287.91

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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.