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Finding the Fourth Proportional to 439,523.60, 659,285.40 and 374,205.20

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Solution

The fourth proportional to 439,523.60, 659,285.40 and 374,205.20 is: 561,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,523.60 : 659,285.40 = 374,205.20 : x
  2. Step 2: Convert to fraction form
    439,523.60/659,285.40 = 374,205.20/x
  3. Step 3: Cross multiply
    439,523.60x = 659,285.40 × 374,205.20
  4. Step 4: Simplify right side
    439,523.60x = 246,708,024,964.08
  5. Step 5: Solve for x
    x = 246,708,024,964.08/439,523.60
  6. Step 6: Final answer
    x = 561,307.80

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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.