Home / 945,384.50-1,418,076.76-280,536.50

Finding the Fourth Proportional to 945,384.50, 1,418,076.76 and 280,536.50

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Solution

The fourth proportional to 945,384.50, 1,418,076.76 and 280,536.50 is: 420,804.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,384.50 : 1,418,076.76 = 280,536.50 : x
  2. Step 2: Convert to fraction form
    945,384.50/1,418,076.76 = 280,536.50/x
  3. Step 3: Cross multiply
    945,384.50x = 1,418,076.76 × 280,536.50
  4. Step 4: Simplify right side
    945,384.50x = 397,822,290,981.74
  5. Step 5: Solve for x
    x = 397,822,290,981.74/945,384.50
  6. Step 6: Final answer
    x = 420,804.75

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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.