Home / 1,019,521.72-1,529,183.64-309,555.92

Finding the Fourth Proportional to 1,019,521.72, 1,529,183.64 and 309,555.92

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Solution

The fourth proportional to 1,019,521.72, 1,529,183.64 and 309,555.92 is: 464,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,521.72 : 1,529,183.64 = 309,555.92 : x
  2. Step 2: Convert to fraction form
    1,019,521.72/1,529,183.64 = 309,555.92/x
  3. Step 3: Cross multiply
    1,019,521.72x = 1,529,183.64 × 309,555.92
  4. Step 4: Simplify right side
    1,019,521.72x = 473,367,848,529.15
  5. Step 5: Solve for x
    x = 473,367,848,529.15/1,019,521.72
  6. Step 6: Final answer
    x = 464,303.84

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Double scale
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Similar ratio
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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.