Home / 778,552.58-1,074,439.37-439,013.54

Finding the Fourth Proportional to 778,552.58, 1,074,439.37 and 439,013.54

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Solution

The fourth proportional to 778,552.58, 1,074,439.37 and 439,013.54 is: 605,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,552.58 : 1,074,439.37 = 439,013.54 : x
  2. Step 2: Convert to fraction form
    778,552.58/1,074,439.37 = 439,013.54/x
  3. Step 3: Cross multiply
    778,552.58x = 1,074,439.37 × 439,013.54
  4. Step 4: Simplify right side
    778,552.58x = 471,693,431,339.07
  5. Step 5: Solve for x
    x = 471,693,431,339.07/778,552.58
  6. Step 6: Final answer
    x = 605,859.44

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Double scale
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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.