Home / 890,999.80-1,336,499.70-572,135.20

Finding the Fourth Proportional to 890,999.80, 1,336,499.70 and 572,135.20

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Solution

The fourth proportional to 890,999.80, 1,336,499.70 and 572,135.20 is: 858,202.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,999.80 : 1,336,499.70 = 572,135.20 : x
  2. Step 2: Convert to fraction form
    890,999.80/1,336,499.70 = 572,135.20/x
  3. Step 3: Cross multiply
    890,999.80x = 1,336,499.70 × 572,135.20
  4. Step 4: Simplify right side
    890,999.80x = 764,658,523,159.44
  5. Step 5: Solve for x
    x = 764,658,523,159.44/890,999.80
  6. Step 6: Final answer
    x = 858,202.80

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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.