Home / 880,840.12-1,321,287.58-419,116.90

Finding the Fourth Proportional to 880,840.12, 1,321,287.58 and 419,116.90

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Solution

The fourth proportional to 880,840.12, 1,321,287.58 and 419,116.90 is: 628,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,840.12 : 1,321,287.58 = 419,116.90 : x
  2. Step 2: Convert to fraction form
    880,840.12/1,321,287.58 = 419,116.90/x
  3. Step 3: Cross multiply
    880,840.12x = 1,321,287.58 × 419,116.90
  4. Step 4: Simplify right side
    880,840.12x = 553,773,954,538.10
  5. Step 5: Solve for x
    x = 553,773,954,538.10/880,840.12
  6. Step 6: Final answer
    x = 628,688.39

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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.