Home / 879,739.86-1,214,036.73-477,331.86

Finding the Fourth Proportional to 879,739.86, 1,214,036.73 and 477,331.86

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Solution

The fourth proportional to 879,739.86, 1,214,036.73 and 477,331.86 is: 658,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,739.86 : 1,214,036.73 = 477,331.86 : x
  2. Step 2: Convert to fraction form
    879,739.86/1,214,036.73 = 477,331.86/x
  3. Step 3: Cross multiply
    879,739.86x = 1,214,036.73 × 477,331.86
  4. Step 4: Simplify right side
    879,739.86x = 579,498,410,439.22
  5. Step 5: Solve for x
    x = 579,498,410,439.22/879,739.86
  6. Step 6: Final answer
    x = 658,715.65

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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.