Home / 1,292,999.65-1,784,380.09-712,264.88

Finding the Fourth Proportional to 1,292,999.65, 1,784,380.09 and 712,264.88

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Solution

The fourth proportional to 1,292,999.65, 1,784,380.09 and 712,264.88 is: 982,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,999.65 : 1,784,380.09 = 712,264.88 : x
  2. Step 2: Convert to fraction form
    1,292,999.65/1,784,380.09 = 712,264.88/x
  3. Step 3: Cross multiply
    1,292,999.65x = 1,784,380.09 × 712,264.88
  4. Step 4: Simplify right side
    1,292,999.65x = 1,270,951,270,678.24
  5. Step 5: Solve for x
    x = 1,270,951,270,678.24/1,292,999.65
  6. Step 6: Final answer
    x = 982,947.89

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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.