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Finding the Fourth Proportional to 452,588, 678,969.39 and 172,083.38

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Solution

The fourth proportional to 452,588, 678,969.39 and 172,083.38 is: 258,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,588 : 678,969.39 = 172,083.38 : x
  2. Step 2: Convert to fraction form
    452,588/678,969.39 = 172,083.38/x
  3. Step 3: Cross multiply
    452,588x = 678,969.39 × 172,083.38
  4. Step 4: Simplify right side
    452,588x = 116,839,347,547.74
  5. Step 5: Solve for x
    x = 116,839,347,547.74/452,588
  6. Step 6: Final answer
    x = 258,158.30

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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.