Home / 857,935.58-1,286,108.75-317,890.96

Finding the Fourth Proportional to 857,935.58, 1,286,108.75 and 317,890.96

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Solution

The fourth proportional to 857,935.58, 1,286,108.75 and 317,890.96 is: 476,542.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,935.58 : 1,286,108.75 = 317,890.96 : x
  2. Step 2: Convert to fraction form
    857,935.58/1,286,108.75 = 317,890.96/x
  3. Step 3: Cross multiply
    857,935.58x = 1,286,108.75 × 317,890.96
  4. Step 4: Simplify right side
    857,935.58x = 408,842,341,892.43
  5. Step 5: Solve for x
    x = 408,842,341,892.43/857,935.58
  6. Step 6: Final answer
    x = 476,542.00

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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.