Home / 764,801.59-1,147,311.53-284,988.47

Finding the Fourth Proportional to 764,801.59, 1,147,311.53 and 284,988.47

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Solution

The fourth proportional to 764,801.59, 1,147,311.53 and 284,988.47 is: 427,523.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,801.59 : 1,147,311.53 = 284,988.47 : x
  2. Step 2: Convert to fraction form
    764,801.59/1,147,311.53 = 284,988.47/x
  3. Step 3: Cross multiply
    764,801.59x = 1,147,311.53 × 284,988.47
  4. Step 4: Simplify right side
    764,801.59x = 326,970,561,128.81
  5. Step 5: Solve for x
    x = 326,970,561,128.81/764,801.59
  6. Step 6: Final answer
    x = 427,523.38

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Double scale
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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.