Home / 789,916.80-1,184,583.60-257,455.20

Finding the Fourth Proportional to 789,916.80, 1,184,583.60 and 257,455.20

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Solution

The fourth proportional to 789,916.80, 1,184,583.60 and 257,455.20 is: 386,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,916.80 : 1,184,583.60 = 257,455.20 : x
  2. Step 2: Convert to fraction form
    789,916.80/1,184,583.60 = 257,455.20/x
  3. Step 3: Cross multiply
    789,916.80x = 1,184,583.60 × 257,455.20
  4. Step 4: Simplify right side
    789,916.80x = 304,977,207,654.72
  5. Step 5: Solve for x
    x = 304,977,207,654.72/789,916.80
  6. Step 6: Final answer
    x = 386,087.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.