Home / 780,729.72-1,077,347.16-474,763.83

Finding the Fourth Proportional to 780,729.72, 1,077,347.16 and 474,763.83

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Solution

The fourth proportional to 780,729.72, 1,077,347.16 and 474,763.83 is: 655,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,729.72 : 1,077,347.16 = 474,763.83 : x
  2. Step 2: Convert to fraction form
    780,729.72/1,077,347.16 = 474,763.83/x
  3. Step 3: Cross multiply
    780,729.72x = 1,077,347.16 × 474,763.83
  4. Step 4: Simplify right side
    780,729.72x = 511,485,463,921.22
  5. Step 5: Solve for x
    x = 511,485,463,921.22/780,729.72
  6. Step 6: Final answer
    x = 655,137.69

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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.