Home / 528,085.10-792,127.65-318,133.10

Finding the Fourth Proportional to 528,085.10, 792,127.65 and 318,133.10

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Solution

The fourth proportional to 528,085.10, 792,127.65 and 318,133.10 is: 477,199.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,085.10 : 792,127.65 = 318,133.10 : x
  2. Step 2: Convert to fraction form
    528,085.10/792,127.65 = 318,133.10/x
  3. Step 3: Cross multiply
    528,085.10x = 792,127.65 × 318,133.10
  4. Step 4: Simplify right side
    528,085.10x = 252,002,024,890.22
  5. Step 5: Solve for x
    x = 252,002,024,890.22/528,085.10
  6. Step 6: Final answer
    x = 477,199.65

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Double scale
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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.