Home / 740,979.05-1,022,174.88-468,588.20

Finding the Fourth Proportional to 740,979.05, 1,022,174.88 and 468,588.20

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Solution

The fourth proportional to 740,979.05, 1,022,174.88 and 468,588.20 is: 646,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,979.05 : 1,022,174.88 = 468,588.20 : x
  2. Step 2: Convert to fraction form
    740,979.05/1,022,174.88 = 468,588.20/x
  3. Step 3: Cross multiply
    740,979.05x = 1,022,174.88 × 468,588.20
  4. Step 4: Simplify right side
    740,979.05x = 478,979,087,104.42
  5. Step 5: Solve for x
    x = 478,979,087,104.42/740,979.05
  6. Step 6: Final answer
    x = 646,413.80

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.