Home / 855,120.77-1,180,048.48-467,934.65

Finding the Fourth Proportional to 855,120.77, 1,180,048.48 and 467,934.65

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Solution

The fourth proportional to 855,120.77, 1,180,048.48 and 467,934.65 is: 645,739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,120.77 : 1,180,048.48 = 467,934.65 : x
  2. Step 2: Convert to fraction form
    855,120.77/1,180,048.48 = 467,934.65/x
  3. Step 3: Cross multiply
    855,120.77x = 1,180,048.48 × 467,934.65
  4. Step 4: Simplify right side
    855,120.77x = 552,185,569,826.94
  5. Step 5: Solve for x
    x = 552,185,569,826.94/855,120.77
  6. Step 6: Final answer
    x = 645,739.86

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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.