Home / 485,586.15-670,111.70-270,739.59

Finding the Fourth Proportional to 485,586.15, 670,111.70 and 270,739.59

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Solution

The fourth proportional to 485,586.15, 670,111.70 and 270,739.59 is: 373,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,586.15 : 670,111.70 = 270,739.59 : x
  2. Step 2: Convert to fraction form
    485,586.15/670,111.70 = 270,739.59/x
  3. Step 3: Cross multiply
    485,586.15x = 670,111.70 × 270,739.59
  4. Step 4: Simplify right side
    485,586.15x = 181,425,765,558.51
  5. Step 5: Solve for x
    x = 181,425,765,558.51/485,586.15
  6. Step 6: Final answer
    x = 373,622.20

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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.