Home / 830,478.20-1,243,643.70-548,468.60

Finding the Fourth Proportional to 830,478.20, 1,243,643.70 and 548,468.60

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Solution

The fourth proportional to 830,478.20, 1,243,643.70 and 548,468.60 is: 821,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,478.20 : 1,243,643.70 = 548,468.60 : x
  2. Step 2: Convert to fraction form
    830,478.20/1,243,643.70 = 548,468.60/x
  3. Step 3: Cross multiply
    830,478.20x = 1,243,643.70 × 548,468.60
  4. Step 4: Simplify right side
    830,478.20x = 682,099,519,037.82
  5. Step 5: Solve for x
    x = 682,099,519,037.82/830,478.20
  6. Step 6: Final answer
    x = 821,333.44

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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.