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Finding the Fourth Proportional to 630,771.06, 946,350.99 and 378,331.86

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Solution

The fourth proportional to 630,771.06, 946,350.99 and 378,331.86 is: 567,614.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,771.06 : 946,350.99 = 378,331.86 : x
  2. Step 2: Convert to fraction form
    630,771.06/946,350.99 = 378,331.86/x
  3. Step 3: Cross multiply
    630,771.06x = 946,350.99 × 378,331.86
  4. Step 4: Simplify right side
    630,771.06x = 358,034,730,259.54
  5. Step 5: Solve for x
    x = 358,034,730,259.54/630,771.06
  6. Step 6: Final answer
    x = 567,614.39

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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.