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Finding the Fourth Proportional to 439,437.60, 658,119.60 and 298,432.80

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Solution

The fourth proportional to 439,437.60, 658,119.60 and 298,432.80 is: 446,945.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,437.60 : 658,119.60 = 298,432.80 : x
  2. Step 2: Convert to fraction form
    439,437.60/658,119.60 = 298,432.80/x
  3. Step 3: Cross multiply
    439,437.60x = 658,119.60 × 298,432.80
  4. Step 4: Simplify right side
    439,437.60x = 196,404,474,962.88
  5. Step 5: Solve for x
    x = 196,404,474,962.88/439,437.60
  6. Step 6: Final answer
    x = 446,945.08

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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.