Home / 780,906.96-1,077,731.10-475,004.43

Finding the Fourth Proportional to 780,906.96, 1,077,731.10 and 475,004.43

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Solution

The fourth proportional to 780,906.96, 1,077,731.10 and 475,004.43 is: 655,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,906.96 : 1,077,731.10 = 475,004.43 : x
  2. Step 2: Convert to fraction form
    780,906.96/1,077,731.10 = 475,004.43/x
  3. Step 3: Cross multiply
    780,906.96x = 1,077,731.10 × 475,004.43
  4. Step 4: Simplify right side
    780,906.96x = 511,927,046,848.77
  5. Step 5: Solve for x
    x = 511,927,046,848.77/780,906.96
  6. Step 6: Final answer
    x = 655,554.47

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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.