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Finding the Fourth Proportional to 571,705.44, 788,933.64 and 317,080.32

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Solution

The fourth proportional to 571,705.44, 788,933.64 and 317,080.32 is: 437,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,705.44 : 788,933.64 = 317,080.32 : x
  2. Step 2: Convert to fraction form
    571,705.44/788,933.64 = 317,080.32/x
  3. Step 3: Cross multiply
    571,705.44x = 788,933.64 × 317,080.32
  4. Step 4: Simplify right side
    571,705.44x = 250,155,331,029.97
  5. Step 5: Solve for x
    x = 250,155,331,029.97/571,705.44
  6. Step 6: Final answer
    x = 437,559.82

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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.