Home / 867,090.30-1,300,635.45-727,122.30

Finding the Fourth Proportional to 867,090.30, 1,300,635.45 and 727,122.30

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Solution

The fourth proportional to 867,090.30, 1,300,635.45 and 727,122.30 is: 1,090,683.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,090.30 : 1,300,635.45 = 727,122.30 : x
  2. Step 2: Convert to fraction form
    867,090.30/1,300,635.45 = 727,122.30/x
  3. Step 3: Cross multiply
    867,090.30x = 1,300,635.45 × 727,122.30
  4. Step 4: Simplify right side
    867,090.30x = 945,721,039,865.54
  5. Step 5: Solve for x
    x = 945,721,039,865.54/867,090.30
  6. Step 6: Final answer
    x = 1,090,683.45

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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.