Home / 528,097.10-792,145.65-318,145.10

Finding the Fourth Proportional to 528,097.10, 792,145.65 and 318,145.10

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Solution

The fourth proportional to 528,097.10, 792,145.65 and 318,145.10 is: 477,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,097.10 : 792,145.65 = 318,145.10 : x
  2. Step 2: Convert to fraction form
    528,097.10/792,145.65 = 318,145.10/x
  3. Step 3: Cross multiply
    528,097.10x = 792,145.65 × 318,145.10
  4. Step 4: Simplify right side
    528,097.10x = 252,017,257,033.82
  5. Step 5: Solve for x
    x = 252,017,257,033.82/528,097.10
  6. Step 6: Final answer
    x = 477,217.65

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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.