Home / 1,048,434.40-1,571,290.80-486,272.80

Finding the Fourth Proportional to 1,048,434.40, 1,571,290.80 and 486,272.80

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Solution

The fourth proportional to 1,048,434.40, 1,571,290.80 and 486,272.80 is: 728,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048,434.40 : 1,571,290.80 = 486,272.80 : x
  2. Step 2: Convert to fraction form
    1,048,434.40/1,571,290.80 = 486,272.80/x
  3. Step 3: Cross multiply
    1,048,434.40x = 1,571,290.80 × 486,272.80
  4. Step 4: Simplify right side
    1,048,434.40x = 764,075,976,930.24
  5. Step 5: Solve for x
    x = 764,075,976,930.24/1,048,434.40
  6. Step 6: Final answer
    x = 728,778.05

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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.