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Finding the Fourth Proportional to 477,493.30, 658,953.21 and 262,639

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Solution

The fourth proportional to 477,493.30, 658,953.21 and 262,639 is: 362,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,493.30 : 658,953.21 = 262,639 : x
  2. Step 2: Convert to fraction form
    477,493.30/658,953.21 = 262,639/x
  3. Step 3: Cross multiply
    477,493.30x = 658,953.21 × 262,639
  4. Step 4: Simplify right side
    477,493.30x = 173,066,812,121.19
  5. Step 5: Solve for x
    x = 173,066,812,121.19/477,493.30
  6. Step 6: Final answer
    x = 362,448.67

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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.