Home / 670,809.78-1,005,808.30-301,027.35

Finding the Fourth Proportional to 670,809.78, 1,005,808.30 and 301,027.35

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Solution

The fourth proportional to 670,809.78, 1,005,808.30 and 301,027.35 is: 451,358.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,809.78 : 1,005,808.30 = 301,027.35 : x
  2. Step 2: Convert to fraction form
    670,809.78/1,005,808.30 = 301,027.35/x
  3. Step 3: Cross multiply
    670,809.78x = 1,005,808.30 × 301,027.35
  4. Step 4: Simplify right side
    670,809.78x = 302,775,807,157.01
  5. Step 5: Solve for x
    x = 302,775,807,157.01/670,809.78
  6. Step 6: Final answer
    x = 451,358.67

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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.