Home / 399,014.07-598,515.15-185,662.50

Finding the Fourth Proportional to 399,014.07, 598,515.15 and 185,662.50

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Solution

The fourth proportional to 399,014.07, 598,515.15 and 185,662.50 is: 278,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,014.07 : 598,515.15 = 185,662.50 : x
  2. Step 2: Convert to fraction form
    399,014.07/598,515.15 = 185,662.50/x
  3. Step 3: Cross multiply
    399,014.07x = 598,515.15 × 185,662.50
  4. Step 4: Simplify right side
    399,014.07x = 111,121,819,036.88
  5. Step 5: Solve for x
    x = 111,121,819,036.88/399,014.07
  6. Step 6: Final answer
    x = 278,490.98

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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.