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Finding the Fourth Proportional to 615,147.77, 848,969.57 and 343,310.15

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Solution

The fourth proportional to 615,147.77, 848,969.57 and 343,310.15 is: 473,804.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,147.77 : 848,969.57 = 343,310.15 : x
  2. Step 2: Convert to fraction form
    615,147.77/848,969.57 = 343,310.15/x
  3. Step 3: Cross multiply
    615,147.77x = 848,969.57 × 343,310.15
  4. Step 4: Simplify right side
    615,147.77x = 291,459,870,422.14
  5. Step 5: Solve for x
    x = 291,459,870,422.14/615,147.77
  6. Step 6: Final answer
    x = 473,804.64

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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.