Home / 1,078,347-1,617,379.96-320,173.23

Finding the Fourth Proportional to 1,078,347, 1,617,379.96 and 320,173.23

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Solution

The fourth proportional to 1,078,347, 1,617,379.96 and 320,173.23 is: 480,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,347 : 1,617,379.96 = 320,173.23 : x
  2. Step 2: Convert to fraction form
    1,078,347/1,617,379.96 = 320,173.23/x
  3. Step 3: Cross multiply
    1,078,347x = 1,617,379.96 × 320,173.23
  4. Step 4: Simplify right side
    1,078,347x = 517,841,765,930.47
  5. Step 5: Solve for x
    x = 517,841,765,930.47/1,078,347
  6. Step 6: Final answer
    x = 480,218.12

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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.