Home / 778,176.91-1,074,383.94-488,186.07

Finding the Fourth Proportional to 778,176.91, 1,074,383.94 and 488,186.07

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Solution

The fourth proportional to 778,176.91, 1,074,383.94 and 488,186.07 is: 674,010.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,176.91 : 1,074,383.94 = 488,186.07 : x
  2. Step 2: Convert to fraction form
    778,176.91/1,074,383.94 = 488,186.07/x
  3. Step 3: Cross multiply
    778,176.91x = 1,074,383.94 × 488,186.07
  4. Step 4: Simplify right side
    778,176.91x = 524,499,273,339.72
  5. Step 5: Solve for x
    x = 524,499,273,339.72/778,176.91
  6. Step 6: Final answer
    x = 674,010.33

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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.