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Finding the Fourth Proportional to 702,969.60, 1,054,454.40 and 253,759.80

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Solution

The fourth proportional to 702,969.60, 1,054,454.40 and 253,759.80 is: 380,639.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,969.60 : 1,054,454.40 = 253,759.80 : x
  2. Step 2: Convert to fraction form
    702,969.60/1,054,454.40 = 253,759.80/x
  3. Step 3: Cross multiply
    702,969.60x = 1,054,454.40 × 253,759.80
  4. Step 4: Simplify right side
    702,969.60x = 267,578,137,653.12
  5. Step 5: Solve for x
    x = 267,578,137,653.12/702,969.60
  6. Step 6: Final answer
    x = 380,639.70

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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.