Home / 789,911.15-1,090,072.89-427,333.95

Finding the Fourth Proportional to 789,911.15, 1,090,072.89 and 427,333.95

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Solution

The fourth proportional to 789,911.15, 1,090,072.89 and 427,333.95 is: 589,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,911.15 : 1,090,072.89 = 427,333.95 : x
  2. Step 2: Convert to fraction form
    789,911.15/1,090,072.89 = 427,333.95/x
  3. Step 3: Cross multiply
    789,911.15x = 1,090,072.89 × 427,333.95
  4. Step 4: Simplify right side
    789,911.15x = 465,825,153,871.62
  5. Step 5: Solve for x
    x = 465,825,153,871.62/789,911.15
  6. Step 6: Final answer
    x = 589,718.42

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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.