Home / 934,823.70-1,290,057.30-505,103.76

Finding the Fourth Proportional to 934,823.70, 1,290,057.30 and 505,103.76

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Solution

The fourth proportional to 934,823.70, 1,290,057.30 and 505,103.76 is: 697,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,823.70 : 1,290,057.30 = 505,103.76 : x
  2. Step 2: Convert to fraction form
    934,823.70/1,290,057.30 = 505,103.76/x
  3. Step 3: Cross multiply
    934,823.70x = 1,290,057.30 × 505,103.76
  4. Step 4: Simplify right side
    934,823.70x = 651,612,792,845.45
  5. Step 5: Solve for x
    x = 651,612,792,845.45/934,823.70
  6. Step 6: Final answer
    x = 697,043.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.