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Finding the Fourth Proportional to 478,593.27, 660,450.21 and 260,803.85

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Solution

The fourth proportional to 478,593.27, 660,450.21 and 260,803.85 is: 359,904.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,593.27 : 660,450.21 = 260,803.85 : x
  2. Step 2: Convert to fraction form
    478,593.27/660,450.21 = 260,803.85/x
  3. Step 3: Cross multiply
    478,593.27x = 660,450.21 × 260,803.85
  4. Step 4: Simplify right side
    478,593.27x = 172,247,954,199.06
  5. Step 5: Solve for x
    x = 172,247,954,199.06/478,593.27
  6. Step 6: Final answer
    x = 359,904.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.