Home / 778,738.19-1,168,175.32-217,774.31

Finding the Fourth Proportional to 778,738.19, 1,168,175.32 and 217,774.31

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Solution

The fourth proportional to 778,738.19, 1,168,175.32 and 217,774.31 is: 326,680.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,738.19 : 1,168,175.32 = 217,774.31 : x
  2. Step 2: Convert to fraction form
    778,738.19/1,168,175.32 = 217,774.31/x
  3. Step 3: Cross multiply
    778,738.19x = 1,168,175.32 × 217,774.31
  4. Step 4: Simplify right side
    778,738.19x = 254,398,567,886.72
  5. Step 5: Solve for x
    x = 254,398,567,886.72/778,738.19
  6. Step 6: Final answer
    x = 326,680.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.