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Finding the Fourth Proportional to 528,085.70, 792,517.35 and 212,768.90

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Solution

The fourth proportional to 528,085.70, 792,517.35 and 212,768.90 is: 319,310.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085.70 : 792,517.35 = 212,768.90 : x
  2. Step 2: Convert to fraction form
    528,085.70/792,517.35 = 212,768.90/x
  3. Step 3: Cross multiply
    528,085.70x = 792,517.35 × 212,768.90
  4. Step 4: Simplify right side
    528,085.70x = 168,623,044,790.42
  5. Step 5: Solve for x
    x = 168,623,044,790.42/528,085.70
  6. Step 6: Final answer
    x = 319,310.00

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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.