Home / 861,359.49-1,291,940.65-230,322.51

Finding the Fourth Proportional to 861,359.49, 1,291,940.65 and 230,322.51

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Solution

The fourth proportional to 861,359.49, 1,291,940.65 and 230,322.51 is: 345,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,359.49 : 1,291,940.65 = 230,322.51 : x
  2. Step 2: Convert to fraction form
    861,359.49/1,291,940.65 = 230,322.51/x
  3. Step 3: Cross multiply
    861,359.49x = 1,291,940.65 × 230,322.51
  4. Step 4: Simplify right side
    861,359.49x = 297,563,013,279.03
  5. Step 5: Solve for x
    x = 297,563,013,279.03/861,359.49
  6. Step 6: Final answer
    x = 345,457.40

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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.