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Finding the Fourth Proportional to 538,440.35, 807,660.53 and 528,072.35

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Solution

The fourth proportional to 538,440.35, 807,660.53 and 528,072.35 is: 792,108.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,440.35 : 807,660.53 = 528,072.35 : x
  2. Step 2: Convert to fraction form
    538,440.35/807,660.53 = 528,072.35/x
  3. Step 3: Cross multiply
    538,440.35x = 807,660.53 × 528,072.35
  4. Step 4: Simplify right side
    538,440.35x = 426,503,194,079.35
  5. Step 5: Solve for x
    x = 426,503,194,079.35/538,440.35
  6. Step 6: Final answer
    x = 792,108.53

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Similar ratio
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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.