Home / 728,714.65-1,093,071.98-374,420.65

Finding the Fourth Proportional to 728,714.65, 1,093,071.98 and 374,420.65

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Solution

The fourth proportional to 728,714.65, 1,093,071.98 and 374,420.65 is: 561,630.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,714.65 : 1,093,071.98 = 374,420.65 : x
  2. Step 2: Convert to fraction form
    728,714.65/1,093,071.98 = 374,420.65/x
  3. Step 3: Cross multiply
    728,714.65x = 1,093,071.98 × 374,420.65
  4. Step 4: Simplify right side
    728,714.65x = 409,268,719,376.28
  5. Step 5: Solve for x
    x = 409,268,719,376.28/728,714.65
  6. Step 6: Final answer
    x = 561,630.98

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Double scale
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Similar ratio
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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.