Home / 528,043.10-792,064.65-318,091.10

Finding the Fourth Proportional to 528,043.10, 792,064.65 and 318,091.10

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Solution

The fourth proportional to 528,043.10, 792,064.65 and 318,091.10 is: 477,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,043.10 : 792,064.65 = 318,091.10 : x
  2. Step 2: Convert to fraction form
    528,043.10/792,064.65 = 318,091.10/x
  3. Step 3: Cross multiply
    528,043.10x = 792,064.65 × 318,091.10
  4. Step 4: Simplify right side
    528,043.10x = 251,948,715,789.62
  5. Step 5: Solve for x
    x = 251,948,715,789.62/528,043.10
  6. Step 6: Final answer
    x = 477,136.65

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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.