Home / 899,068.20-1,240,716.60-491,173.80

Finding the Fourth Proportional to 899,068.20, 1,240,716.60 and 491,173.80

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Solution

The fourth proportional to 899,068.20, 1,240,716.60 and 491,173.80 is: 677,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,068.20 : 1,240,716.60 = 491,173.80 : x
  2. Step 2: Convert to fraction form
    899,068.20/1,240,716.60 = 491,173.80/x
  3. Step 3: Cross multiply
    899,068.20x = 1,240,716.60 × 491,173.80
  4. Step 4: Simplify right side
    899,068.20x = 609,407,487,145.08
  5. Step 5: Solve for x
    x = 609,407,487,145.08/899,068.20
  6. Step 6: Final answer
    x = 677,821.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.