Home / 857,242.56-1,286,077.66-605,015.72

Finding the Fourth Proportional to 857,242.56, 1,286,077.66 and 605,015.72

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Solution

The fourth proportional to 857,242.56, 1,286,077.66 and 605,015.72 is: 907,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,242.56 : 1,286,077.66 = 605,015.72 : x
  2. Step 2: Convert to fraction form
    857,242.56/1,286,077.66 = 605,015.72/x
  3. Step 3: Cross multiply
    857,242.56x = 1,286,077.66 × 605,015.72
  4. Step 4: Simplify right side
    857,242.56x = 778,097,201,440.82
  5. Step 5: Solve for x
    x = 778,097,201,440.82/857,242.56
  6. Step 6: Final answer
    x = 907,674.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.