Home / 857,540.97-1,183,398.48-470,348.46

Finding the Fourth Proportional to 857,540.97, 1,183,398.48 and 470,348.46

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Solution

The fourth proportional to 857,540.97, 1,183,398.48 and 470,348.46 is: 649,076.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,540.97 : 1,183,398.48 = 470,348.46 : x
  2. Step 2: Convert to fraction form
    857,540.97/1,183,398.48 = 470,348.46/x
  3. Step 3: Cross multiply
    857,540.97x = 1,183,398.48 × 470,348.46
  4. Step 4: Simplify right side
    857,540.97x = 556,609,652,634.34
  5. Step 5: Solve for x
    x = 556,609,652,634.34/857,540.97
  6. Step 6: Final answer
    x = 649,076.45

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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.