Home / 720,982.35-1,082,123.55-384,303.42

Finding the Fourth Proportional to 720,982.35, 1,082,123.55 and 384,303.42

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Solution

The fourth proportional to 720,982.35, 1,082,123.55 and 384,303.42 is: 576,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,982.35 : 1,082,123.55 = 384,303.42 : x
  2. Step 2: Convert to fraction form
    720,982.35/1,082,123.55 = 384,303.42/x
  3. Step 3: Cross multiply
    720,982.35x = 1,082,123.55 × 384,303.42
  4. Step 4: Simplify right side
    720,982.35x = 415,863,781,127.54
  5. Step 5: Solve for x
    x = 415,863,781,127.54/720,982.35
  6. Step 6: Final answer
    x = 576,801.61

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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.