Home / 778,187.89-1,074,398.97-488,196.94

Finding the Fourth Proportional to 778,187.89, 1,074,398.97 and 488,196.94

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Solution

The fourth proportional to 778,187.89, 1,074,398.97 and 488,196.94 is: 674,025.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,187.89 : 1,074,398.97 = 488,196.94 : x
  2. Step 2: Convert to fraction form
    778,187.89/1,074,398.97 = 488,196.94/x
  3. Step 3: Cross multiply
    778,187.89x = 1,074,398.97 × 488,196.94
  4. Step 4: Simplify right side
    778,187.89x = 524,518,289,493.15
  5. Step 5: Solve for x
    x = 524,518,289,493.15/778,187.89
  6. Step 6: Final answer
    x = 674,025.25

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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.