Home / 810,858.59-1,118,977.29-448,291.52

Finding the Fourth Proportional to 810,858.59, 1,118,977.29 and 448,291.52

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Solution

The fourth proportional to 810,858.59, 1,118,977.29 and 448,291.52 is: 618,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,858.59 : 1,118,977.29 = 448,291.52 : x
  2. Step 2: Convert to fraction form
    810,858.59/1,118,977.29 = 448,291.52/x
  3. Step 3: Cross multiply
    810,858.59x = 1,118,977.29 × 448,291.52
  4. Step 4: Simplify right side
    810,858.59x = 501,628,030,179.58
  5. Step 5: Solve for x
    x = 501,628,030,179.58/810,858.59
  6. Step 6: Final answer
    x = 618,638.12

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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.