Home / 776,032.96-1,071,072.64-485,779.52

Finding the Fourth Proportional to 776,032.96, 1,071,072.64 and 485,779.52

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Solution

The fourth proportional to 776,032.96, 1,071,072.64 and 485,779.52 is: 670,467.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,032.96 : 1,071,072.64 = 485,779.52 : x
  2. Step 2: Convert to fraction form
    776,032.96/1,071,072.64 = 485,779.52/x
  3. Step 3: Cross multiply
    776,032.96x = 1,071,072.64 × 485,779.52
  4. Step 4: Simplify right side
    776,032.96x = 520,305,152,944.33
  5. Step 5: Solve for x
    x = 520,305,152,944.33/776,032.96
  6. Step 6: Final answer
    x = 670,467.85

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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.