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Finding the Fourth Proportional to 571,669.60, 788,848 and 317,016.32

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Solution

The fourth proportional to 571,669.60, 788,848 and 317,016.32 is: 437,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,669.60 : 788,848 = 317,016.32 : x
  2. Step 2: Convert to fraction form
    571,669.60/788,848 = 317,016.32/x
  3. Step 3: Cross multiply
    571,669.60x = 788,848 × 317,016.32
  4. Step 4: Simplify right side
    571,669.60x = 250,077,689,999.36
  5. Step 5: Solve for x
    x = 250,077,689,999.36/571,669.60
  6. Step 6: Final answer
    x = 437,451.44

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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.