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Finding the Fourth Proportional to 477,503.40, 658,940.81 and 262,643.42

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Solution

The fourth proportional to 477,503.40, 658,940.81 and 262,643.42 is: 362,440.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,503.40 : 658,940.81 = 262,643.42 : x
  2. Step 2: Convert to fraction form
    477,503.40/658,940.81 = 262,643.42/x
  3. Step 3: Cross multiply
    477,503.40x = 658,940.81 × 262,643.42
  4. Step 4: Simplify right side
    477,503.40x = 173,066,463,308.05
  5. Step 5: Solve for x
    x = 173,066,463,308.05/477,503.40
  6. Step 6: Final answer
    x = 362,440.27

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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.