Home / 819,022.98-1,130,284.38-456,443.60

Finding the Fourth Proportional to 819,022.98, 1,130,284.38 and 456,443.60

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Solution

The fourth proportional to 819,022.98, 1,130,284.38 and 456,443.60 is: 629,910.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,022.98 : 1,130,284.38 = 456,443.60 : x
  2. Step 2: Convert to fraction form
    819,022.98/1,130,284.38 = 456,443.60/x
  3. Step 3: Cross multiply
    819,022.98x = 1,130,284.38 × 456,443.60
  4. Step 4: Simplify right side
    819,022.98x = 515,911,065,779.55
  5. Step 5: Solve for x
    x = 515,911,065,779.55/819,022.98
  6. Step 6: Final answer
    x = 629,910.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.