Home / 772,189.01-1,157,466.85-285,558.45

Finding the Fourth Proportional to 772,189.01, 1,157,466.85 and 285,558.45

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Solution

The fourth proportional to 772,189.01, 1,157,466.85 and 285,558.45 is: 428,035.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,189.01 : 1,157,466.85 = 285,558.45 : x
  2. Step 2: Convert to fraction form
    772,189.01/1,157,466.85 = 285,558.45/x
  3. Step 3: Cross multiply
    772,189.01x = 1,157,466.85 × 285,558.45
  4. Step 4: Simplify right side
    772,189.01x = 330,524,439,612.38
  5. Step 5: Solve for x
    x = 330,524,439,612.38/772,189.01
  6. Step 6: Final answer
    x = 428,035.67

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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.