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Finding the Fourth Proportional to 329,762.40, 494,643.60 and 284,661.60

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Solution

The fourth proportional to 329,762.40, 494,643.60 and 284,661.60 is: 426,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,762.40 : 494,643.60 = 284,661.60 : x
  2. Step 2: Convert to fraction form
    329,762.40/494,643.60 = 284,661.60/x
  3. Step 3: Cross multiply
    329,762.40x = 494,643.60 × 284,661.60
  4. Step 4: Simplify right side
    329,762.40x = 140,806,038,605.76
  5. Step 5: Solve for x
    x = 140,806,038,605.76/329,762.40
  6. Step 6: Final answer
    x = 426,992.40

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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.