Home / 426,051.60-639,077.40-268,976.40

Finding the Fourth Proportional to 426,051.60, 639,077.40 and 268,976.40

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Solution

The fourth proportional to 426,051.60, 639,077.40 and 268,976.40 is: 403,464.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,051.60 : 639,077.40 = 268,976.40 : x
  2. Step 2: Convert to fraction form
    426,051.60/639,077.40 = 268,976.40/x
  3. Step 3: Cross multiply
    426,051.60x = 639,077.40 × 268,976.40
  4. Step 4: Simplify right side
    426,051.60x = 171,896,738,373.36
  5. Step 5: Solve for x
    x = 171,896,738,373.36/426,051.60
  6. Step 6: Final answer
    x = 403,464.60

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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.