Home / 825,979.14-1,139,868.77-463,429.22

Finding the Fourth Proportional to 825,979.14, 1,139,868.77 and 463,429.22

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Solution

The fourth proportional to 825,979.14, 1,139,868.77 and 463,429.22 is: 639,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,979.14 : 1,139,868.77 = 463,429.22 : x
  2. Step 2: Convert to fraction form
    825,979.14/1,139,868.77 = 463,429.22/x
  3. Step 3: Cross multiply
    825,979.14x = 1,139,868.77 × 463,429.22
  4. Step 4: Simplify right side
    825,979.14x = 528,248,494,983.46
  5. Step 5: Solve for x
    x = 528,248,494,983.46/825,979.14
  6. Step 6: Final answer
    x = 639,542.17

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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.