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Finding the Fourth Proportional to 567,734.85, 783,471.72 and 309,611.10

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Solution

The fourth proportional to 567,734.85, 783,471.72 and 309,611.10 is: 427,262.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,734.85 : 783,471.72 = 309,611.10 : x
  2. Step 2: Convert to fraction form
    567,734.85/783,471.72 = 309,611.10/x
  3. Step 3: Cross multiply
    567,734.85x = 783,471.72 × 309,611.10
  4. Step 4: Simplify right side
    567,734.85x = 242,571,541,048.09
  5. Step 5: Solve for x
    x = 242,571,541,048.09/567,734.85
  6. Step 6: Final answer
    x = 427,262.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.