Home / 855,713.89-1,180,840.23-468,455.05

Finding the Fourth Proportional to 855,713.89, 1,180,840.23 and 468,455.05

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Solution

The fourth proportional to 855,713.89, 1,180,840.23 and 468,455.05 is: 646,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,713.89 : 1,180,840.23 = 468,455.05 : x
  2. Step 2: Convert to fraction form
    855,713.89/1,180,840.23 = 468,455.05/x
  3. Step 3: Cross multiply
    855,713.89x = 1,180,840.23 × 468,455.05
  4. Step 4: Simplify right side
    855,713.89x = 553,170,568,986.66
  5. Step 5: Solve for x
    x = 553,170,568,986.66/855,713.89
  6. Step 6: Final answer
    x = 646,443.37

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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.