Home / 728,413.40-1,092,231.30-307,213.40

Finding the Fourth Proportional to 728,413.40, 1,092,231.30 and 307,213.40

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Solution

The fourth proportional to 728,413.40, 1,092,231.30 and 307,213.40 is: 460,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,413.40 : 1,092,231.30 = 307,213.40 : x
  2. Step 2: Convert to fraction form
    728,413.40/1,092,231.30 = 307,213.40/x
  3. Step 3: Cross multiply
    728,413.40x = 1,092,231.30 × 307,213.40
  4. Step 4: Simplify right side
    728,413.40x = 335,548,091,259.42
  5. Step 5: Solve for x
    x = 335,548,091,259.42/728,413.40
  6. Step 6: Final answer
    x = 460,656.12

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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.