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Finding the Fourth Proportional to 528,356.44, 792,560.58 and 212,770.72

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Solution

The fourth proportional to 528,356.44, 792,560.58 and 212,770.72 is: 319,166.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,356.44 : 792,560.58 = 212,770.72 : x
  2. Step 2: Convert to fraction form
    528,356.44/792,560.58 = 212,770.72/x
  3. Step 3: Cross multiply
    528,356.44x = 792,560.58 × 212,770.72
  4. Step 4: Simplify right side
    528,356.44x = 168,633,685,250.22
  5. Step 5: Solve for x
    x = 168,633,685,250.22/528,356.44
  6. Step 6: Final answer
    x = 319,166.52

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1.5x scale

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.