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Finding the Fourth Proportional to 567,597.57, 783,269.96 and 309,479.32

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Solution

The fourth proportional to 567,597.57, 783,269.96 and 309,479.32 is: 427,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,597.57 : 783,269.96 = 309,479.32 : x
  2. Step 2: Convert to fraction form
    567,597.57/783,269.96 = 309,479.32/x
  3. Step 3: Cross multiply
    567,597.57x = 783,269.96 × 309,479.32
  4. Step 4: Simplify right side
    567,597.57x = 242,405,854,597.23
  5. Step 5: Solve for x
    x = 242,405,854,597.23/567,597.57
  6. Step 6: Final answer
    x = 427,073.45

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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.