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Finding the Fourth Proportional to 528,090.90, 792,136.35 and 403,674.90

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Solution

The fourth proportional to 528,090.90, 792,136.35 and 403,674.90 is: 605,512.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,090.90 : 792,136.35 = 403,674.90 : x
  2. Step 2: Convert to fraction form
    528,090.90/792,136.35 = 403,674.90/x
  3. Step 3: Cross multiply
    528,090.90x = 792,136.35 × 403,674.90
  4. Step 4: Simplify right side
    528,090.90x = 319,765,561,872.62
  5. Step 5: Solve for x
    x = 319,765,561,872.62/528,090.90
  6. Step 6: Final answer
    x = 605,512.35

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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.