Home / 857,992.50-1,287,345.69-377,974.62

Finding the Fourth Proportional to 857,992.50, 1,287,345.69 and 377,974.62

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Solution

The fourth proportional to 857,992.50, 1,287,345.69 and 377,974.62 is: 567,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,992.50 : 1,287,345.69 = 377,974.62 : x
  2. Step 2: Convert to fraction form
    857,992.50/1,287,345.69 = 377,974.62/x
  3. Step 3: Cross multiply
    857,992.50x = 1,287,345.69 × 377,974.62
  4. Step 4: Simplify right side
    857,992.50x = 486,583,997,986.39
  5. Step 5: Solve for x
    x = 486,583,997,986.39/857,992.50
  6. Step 6: Final answer
    x = 567,119.17

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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.