Home / 778,187.88-1,074,398.96-488,196.96

Finding the Fourth Proportional to 778,187.88, 1,074,398.96 and 488,196.96

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Solution

The fourth proportional to 778,187.88, 1,074,398.96 and 488,196.96 is: 674,025.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,187.88 : 1,074,398.96 = 488,196.96 : x
  2. Step 2: Convert to fraction form
    778,187.88/1,074,398.96 = 488,196.96/x
  3. Step 3: Cross multiply
    778,187.88x = 1,074,398.96 × 488,196.96
  4. Step 4: Simplify right side
    778,187.88x = 524,518,306,099.16
  5. Step 5: Solve for x
    x = 524,518,306,099.16/778,187.88
  6. Step 6: Final answer
    x = 674,025.28

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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.