Home / 790,354.32-1,185,654.94-257,751.48

Finding the Fourth Proportional to 790,354.32, 1,185,654.94 and 257,751.48

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Solution

The fourth proportional to 790,354.32, 1,185,654.94 and 257,751.48 is: 386,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,354.32 : 1,185,654.94 = 257,751.48 : x
  2. Step 2: Convert to fraction form
    790,354.32/1,185,654.94 = 257,751.48/x
  3. Step 3: Cross multiply
    790,354.32x = 1,185,654.94 × 257,751.48
  4. Step 4: Simplify right side
    790,354.32x = 305,604,315,554.31
  5. Step 5: Solve for x
    x = 305,604,315,554.31/790,354.32
  6. Step 6: Final answer
    x = 386,667.48

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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.