Home / 890,245.12-1,334,434.56-328,921.60

Finding the Fourth Proportional to 890,245.12, 1,334,434.56 and 328,921.60

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Solution

The fourth proportional to 890,245.12, 1,334,434.56 and 328,921.60 is: 493,037.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,245.12 : 1,334,434.56 = 328,921.60 : x
  2. Step 2: Convert to fraction form
    890,245.12/1,334,434.56 = 328,921.60/x
  3. Step 3: Cross multiply
    890,245.12x = 1,334,434.56 × 328,921.60
  4. Step 4: Simplify right side
    890,245.12x = 438,924,350,570.50
  5. Step 5: Solve for x
    x = 438,924,350,570.50/890,245.12
  6. Step 6: Final answer
    x = 493,037.64

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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.