Home / 719,681.23-1,079,521.71-214,249.60

Finding the Fourth Proportional to 719,681.23, 1,079,521.71 and 214,249.60

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Solution

The fourth proportional to 719,681.23, 1,079,521.71 and 214,249.60 is: 321,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,681.23 : 1,079,521.71 = 214,249.60 : x
  2. Step 2: Convert to fraction form
    719,681.23/1,079,521.71 = 214,249.60/x
  3. Step 3: Cross multiply
    719,681.23x = 1,079,521.71 × 214,249.60
  4. Step 4: Simplify right side
    719,681.23x = 231,287,094,558.82
  5. Step 5: Solve for x
    x = 231,287,094,558.82/719,681.23
  6. Step 6: Final answer
    x = 321,374.36

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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.