Home / 810,591.12-1,118,673.66-448,007.18

Finding the Fourth Proportional to 810,591.12, 1,118,673.66 and 448,007.18

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Solution

The fourth proportional to 810,591.12, 1,118,673.66 and 448,007.18 is: 618,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,591.12 : 1,118,673.66 = 448,007.18 : x
  2. Step 2: Convert to fraction form
    810,591.12/1,118,673.66 = 448,007.18/x
  3. Step 3: Cross multiply
    810,591.12x = 1,118,673.66 × 448,007.18
  4. Step 4: Simplify right side
    810,591.12x = 501,173,826,163.51
  5. Step 5: Solve for x
    x = 501,173,826,163.51/810,591.12
  6. Step 6: Final answer
    x = 618,281.91

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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.