Home / 720,974.12-1,082,111.20-384,295.18

Finding the Fourth Proportional to 720,974.12, 1,082,111.20 and 384,295.18

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Solution

The fourth proportional to 720,974.12, 1,082,111.20 and 384,295.18 is: 576,789.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,974.12 : 1,082,111.20 = 384,295.18 : x
  2. Step 2: Convert to fraction form
    720,974.12/1,082,111.20 = 384,295.18/x
  3. Step 3: Cross multiply
    720,974.12x = 1,082,111.20 × 384,295.18
  4. Step 4: Simplify right side
    720,974.12x = 415,850,118,384.02
  5. Step 5: Solve for x
    x = 415,850,118,384.02/720,974.12
  6. Step 6: Final answer
    x = 576,789.25

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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.