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Finding the Fourth Proportional to 567,408.55, 783,000.24 and 309,279.82

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Solution

The fourth proportional to 567,408.55, 783,000.24 and 309,279.82 is: 426,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,408.55 : 783,000.24 = 309,279.82 : x
  2. Step 2: Convert to fraction form
    567,408.55/783,000.24 = 309,279.82/x
  3. Step 3: Cross multiply
    567,408.55x = 783,000.24 × 309,279.82
  4. Step 4: Simplify right side
    567,408.55x = 242,166,169,812.90
  5. Step 5: Solve for x
    x = 242,166,169,812.90/567,408.55
  6. Step 6: Final answer
    x = 426,793.30

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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.