Home / 855,419.08-1,180,431.40-487,842.28

Finding the Fourth Proportional to 855,419.08, 1,180,431.40 and 487,842.28

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Solution

The fourth proportional to 855,419.08, 1,180,431.40 and 487,842.28 is: 673,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,419.08 : 1,180,431.40 = 487,842.28 : x
  2. Step 2: Convert to fraction form
    855,419.08/1,180,431.40 = 487,842.28/x
  3. Step 3: Cross multiply
    855,419.08x = 1,180,431.40 × 487,842.28
  4. Step 4: Simplify right side
    855,419.08x = 575,864,345,559.59
  5. Step 5: Solve for x
    x = 575,864,345,559.59/855,419.08
  6. Step 6: Final answer
    x = 673,195.58

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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.