Home / 684,810.72-1,027,434.80-329,860.64

Finding the Fourth Proportional to 684,810.72, 1,027,434.80 and 329,860.64

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Solution

The fourth proportional to 684,810.72, 1,027,434.80 and 329,860.64 is: 494,896.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,810.72 : 1,027,434.80 = 329,860.64 : x
  2. Step 2: Convert to fraction form
    684,810.72/1,027,434.80 = 329,860.64/x
  3. Step 3: Cross multiply
    684,810.72x = 1,027,434.80 × 329,860.64
  4. Step 4: Simplify right side
    684,810.72x = 338,910,300,686.27
  5. Step 5: Solve for x
    x = 338,910,300,686.27/684,810.72
  6. Step 6: Final answer
    x = 494,896.31

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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.