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Finding the Fourth Proportional to 528,417, 792,459 and 173,348.28

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Solution

The fourth proportional to 528,417, 792,459 and 173,348.28 is: 259,967.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,417 : 792,459 = 173,348.28 : x
  2. Step 2: Convert to fraction form
    528,417/792,459 = 173,348.28/x
  3. Step 3: Cross multiply
    528,417x = 792,459 × 173,348.28
  4. Step 4: Simplify right side
    528,417x = 137,371,404,620.52
  5. Step 5: Solve for x
    x = 137,371,404,620.52/528,417
  6. Step 6: Final answer
    x = 259,967.80

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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.