Home / 399,698.02-599,641.40-129,825.33

Finding the Fourth Proportional to 399,698.02, 599,641.40 and 129,825.33

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Solution

The fourth proportional to 399,698.02, 599,641.40 and 129,825.33 is: 194,768.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,698.02 : 599,641.40 = 129,825.33 : x
  2. Step 2: Convert to fraction form
    399,698.02/599,641.40 = 129,825.33/x
  3. Step 3: Cross multiply
    399,698.02x = 599,641.40 × 129,825.33
  4. Step 4: Simplify right side
    399,698.02x = 77,848,642,636.66
  5. Step 5: Solve for x
    x = 77,848,642,636.66/399,698.02
  6. Step 6: Final answer
    x = 194,768.65

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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.