Home / 1,119,015.63-1,678,690.17-399,301.20

Finding the Fourth Proportional to 1,119,015.63, 1,678,690.17 and 399,301.20

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Solution

The fourth proportional to 1,119,015.63, 1,678,690.17 and 399,301.20 is: 599,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,015.63 : 1,678,690.17 = 399,301.20 : x
  2. Step 2: Convert to fraction form
    1,119,015.63/1,678,690.17 = 399,301.20/x
  3. Step 3: Cross multiply
    1,119,015.63x = 1,678,690.17 × 399,301.20
  4. Step 4: Simplify right side
    1,119,015.63x = 670,302,999,309.20
  5. Step 5: Solve for x
    x = 670,302,999,309.20/1,119,015.63
  6. Step 6: Final answer
    x = 599,011.29

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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.