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Finding the Fourth Proportional to 528,399, 792,432.12 and 173,330.52

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Solution

The fourth proportional to 528,399, 792,432.12 and 173,330.52 is: 259,941.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,399 : 792,432.12 = 173,330.52 : x
  2. Step 2: Convert to fraction form
    528,399/792,432.12 = 173,330.52/x
  3. Step 3: Cross multiply
    528,399x = 792,432.12 × 173,330.52
  4. Step 4: Simplify right side
    528,399x = 137,352,671,424.30
  5. Step 5: Solve for x
    x = 137,352,671,424.30/528,399
  6. Step 6: Final answer
    x = 259,941.20

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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.