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Finding the Fourth Proportional to 528,427.80, 792,641.70 and 482,808.60

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Solution

The fourth proportional to 528,427.80, 792,641.70 and 482,808.60 is: 724,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,427.80 : 792,641.70 = 482,808.60 : x
  2. Step 2: Convert to fraction form
    528,427.80/792,641.70 = 482,808.60/x
  3. Step 3: Cross multiply
    528,427.80x = 792,641.70 × 482,808.60
  4. Step 4: Simplify right side
    528,427.80x = 382,694,229,478.62
  5. Step 5: Solve for x
    x = 382,694,229,478.62/528,427.80
  6. Step 6: Final answer
    x = 724,212.90

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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.