Home / 821,664.20-1,233,533.10-442,886.60

Finding the Fourth Proportional to 821,664.20, 1,233,533.10 and 442,886.60

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Solution

The fourth proportional to 821,664.20, 1,233,533.10 and 442,886.60 is: 664,888.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,664.20 : 1,233,533.10 = 442,886.60 : x
  2. Step 2: Convert to fraction form
    821,664.20/1,233,533.10 = 442,886.60/x
  3. Step 3: Cross multiply
    821,664.20x = 1,233,533.10 × 442,886.60
  4. Step 4: Simplify right side
    821,664.20x = 546,315,280,646.46
  5. Step 5: Solve for x
    x = 546,315,280,646.46/821,664.20
  6. Step 6: Final answer
    x = 664,888.75

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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.