Home / 811,329.04-1,119,291.24-543,143.44

Finding the Fourth Proportional to 811,329.04, 1,119,291.24 and 543,143.44

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Solution

The fourth proportional to 811,329.04, 1,119,291.24 and 543,143.44 is: 749,308.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,329.04 : 1,119,291.24 = 543,143.44 : x
  2. Step 2: Convert to fraction form
    811,329.04/1,119,291.24 = 543,143.44/x
  3. Step 3: Cross multiply
    811,329.04x = 1,119,291.24 × 543,143.44
  4. Step 4: Simplify right side
    811,329.04x = 607,935,694,455.47
  5. Step 5: Solve for x
    x = 607,935,694,455.47/811,329.04
  6. Step 6: Final answer
    x = 749,308.44

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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.