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Finding the Fourth Proportional to 614,560.80, 920,977.20 and 488,416.80

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Solution

The fourth proportional to 614,560.80, 920,977.20 and 488,416.80 is: 731,938.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,560.80 : 920,977.20 = 488,416.80 : x
  2. Step 2: Convert to fraction form
    614,560.80/920,977.20 = 488,416.80/x
  3. Step 3: Cross multiply
    614,560.80x = 920,977.20 × 488,416.80
  4. Step 4: Simplify right side
    614,560.80x = 449,820,736,896.96
  5. Step 5: Solve for x
    x = 449,820,736,896.96/614,560.80
  6. Step 6: Final answer
    x = 731,938.54

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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.