Home / 778,169.18-1,074,373.24-488,178.32

Finding the Fourth Proportional to 778,169.18, 1,074,373.24 and 488,178.32

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Solution

The fourth proportional to 778,169.18, 1,074,373.24 and 488,178.32 is: 673,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,169.18 : 1,074,373.24 = 488,178.32 : x
  2. Step 2: Convert to fraction form
    778,169.18/1,074,373.24 = 488,178.32/x
  3. Step 3: Cross multiply
    778,169.18x = 1,074,373.24 × 488,178.32
  4. Step 4: Simplify right side
    778,169.18x = 524,485,722,073.86
  5. Step 5: Solve for x
    x = 524,485,722,073.86/778,169.18
  6. Step 6: Final answer
    x = 673,999.61

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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.