Home / 1,385,980.50-1,912,653.09-750,076.50

Finding the Fourth Proportional to 1,385,980.50, 1,912,653.09 and 750,076.50

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Solution

The fourth proportional to 1,385,980.50, 1,912,653.09 and 750,076.50 is: 1,035,105.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,980.50 : 1,912,653.09 = 750,076.50 : x
  2. Step 2: Convert to fraction form
    1,385,980.50/1,912,653.09 = 750,076.50/x
  3. Step 3: Cross multiply
    1,385,980.50x = 1,912,653.09 × 750,076.50
  4. Step 4: Simplify right side
    1,385,980.50x = 1,434,636,135,461.39
  5. Step 5: Solve for x
    x = 1,434,636,135,461.39/1,385,980.50
  6. Step 6: Final answer
    x = 1,035,105.57

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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.