Home / 778,431.06-1,167,714.63-217,467.18

Finding the Fourth Proportional to 778,431.06, 1,167,714.63 and 217,467.18

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Solution

The fourth proportional to 778,431.06, 1,167,714.63 and 217,467.18 is: 326,219.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,431.06 : 1,167,714.63 = 217,467.18 : x
  2. Step 2: Convert to fraction form
    778,431.06/1,167,714.63 = 217,467.18/x
  3. Step 3: Cross multiply
    778,431.06x = 1,167,714.63 × 217,467.18
  4. Step 4: Simplify right side
    778,431.06x = 253,939,607,630.84
  5. Step 5: Solve for x
    x = 253,939,607,630.84/778,431.06
  6. Step 6: Final answer
    x = 326,219.78

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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.