Home / 789,879.06-1,090,030.70-427,302.81

Finding the Fourth Proportional to 789,879.06, 1,090,030.70 and 427,302.81

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Solution

The fourth proportional to 789,879.06, 1,090,030.70 and 427,302.81 is: 589,676.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,879.06 : 1,090,030.70 = 427,302.81 : x
  2. Step 2: Convert to fraction form
    789,879.06/1,090,030.70 = 427,302.81/x
  3. Step 3: Cross multiply
    789,879.06x = 1,090,030.70 × 427,302.81
  4. Step 4: Simplify right side
    789,879.06x = 465,773,182,164.52
  5. Step 5: Solve for x
    x = 465,773,182,164.52/789,879.06
  6. Step 6: Final answer
    x = 589,676.58

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1.5x scale

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.