Home / 685,259.31-1,028,899.42-382,245.52

Finding the Fourth Proportional to 685,259.31, 1,028,899.42 and 382,245.52

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Solution

The fourth proportional to 685,259.31, 1,028,899.42 and 382,245.52 is: 573,931.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,259.31 : 1,028,899.42 = 382,245.52 : x
  2. Step 2: Convert to fraction form
    685,259.31/1,028,899.42 = 382,245.52/x
  3. Step 3: Cross multiply
    685,259.31x = 1,028,899.42 × 382,245.52
  4. Step 4: Simplify right side
    685,259.31x = 393,292,186,769.87
  5. Step 5: Solve for x
    x = 393,292,186,769.87/685,259.31
  6. Step 6: Final answer
    x = 573,931.92

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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.