Home / 434,005.06-648,367.90-280,955.30

Finding the Fourth Proportional to 434,005.06, 648,367.90 and 280,955.30

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Solution

The fourth proportional to 434,005.06, 648,367.90 and 280,955.30 is: 419,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,005.06 : 648,367.90 = 280,955.30 : x
  2. Step 2: Convert to fraction form
    434,005.06/648,367.90 = 280,955.30/x
  3. Step 3: Cross multiply
    434,005.06x = 648,367.90 × 280,955.30
  4. Step 4: Simplify right side
    434,005.06x = 182,162,399,475.79
  5. Step 5: Solve for x
    x = 182,162,399,475.79/434,005.06
  6. Step 6: Final answer
    x = 419,724.14

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.