Home / 812,048.51-1,119,882.34-697,288.12

Finding the Fourth Proportional to 812,048.51, 1,119,882.34 and 697,288.12

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Solution

The fourth proportional to 812,048.51, 1,119,882.34 and 697,288.12 is: 961,618.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,048.51 : 1,119,882.34 = 697,288.12 : x
  2. Step 2: Convert to fraction form
    812,048.51/1,119,882.34 = 697,288.12/x
  3. Step 3: Cross multiply
    812,048.51x = 1,119,882.34 × 697,288.12
  4. Step 4: Simplify right side
    812,048.51x = 780,880,651,479.80
  5. Step 5: Solve for x
    x = 780,880,651,479.80/812,048.51
  6. Step 6: Final answer
    x = 961,618.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.