Home / 830,219.40-1,245,482.70-269,272.20

Finding the Fourth Proportional to 830,219.40, 1,245,482.70 and 269,272.20

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Solution

The fourth proportional to 830,219.40, 1,245,482.70 and 269,272.20 is: 403,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,219.40 : 1,245,482.70 = 269,272.20 : x
  2. Step 2: Convert to fraction form
    830,219.40/1,245,482.70 = 269,272.20/x
  3. Step 3: Cross multiply
    830,219.40x = 1,245,482.70 × 269,272.20
  4. Step 4: Simplify right side
    830,219.40x = 335,373,866,690.94
  5. Step 5: Solve for x
    x = 335,373,866,690.94/830,219.40
  6. Step 6: Final answer
    x = 403,958.12

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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.