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Finding the Fourth Proportional to 485,846.02, 728,769.05 and 260,897.02

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Solution

The fourth proportional to 485,846.02, 728,769.05 and 260,897.02 is: 391,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,846.02 : 728,769.05 = 260,897.02 : x
  2. Step 2: Convert to fraction form
    485,846.02/728,769.05 = 260,897.02/x
  3. Step 3: Cross multiply
    485,846.02x = 728,769.05 × 260,897.02
  4. Step 4: Simplify right side
    485,846.02x = 190,133,673,413.23
  5. Step 5: Solve for x
    x = 190,133,673,413.23/485,846.02
  6. Step 6: Final answer
    x = 391,345.54

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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.