Home / 809,075.60-1,213,321.80-409,583.60

Finding the Fourth Proportional to 809,075.60, 1,213,321.80 and 409,583.60

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Solution

The fourth proportional to 809,075.60, 1,213,321.80 and 409,583.60 is: 614,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,075.60 : 1,213,321.80 = 409,583.60 : x
  2. Step 2: Convert to fraction form
    809,075.60/1,213,321.80 = 409,583.60/x
  3. Step 3: Cross multiply
    809,075.60x = 1,213,321.80 × 409,583.60
  4. Step 4: Simplify right side
    809,075.60x = 496,956,710,802.48
  5. Step 5: Solve for x
    x = 496,956,710,802.48/809,075.60
  6. Step 6: Final answer
    x = 614,227.78

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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.