Home / 1,397,104.50-1,928,004.21-761,200.50

Finding the Fourth Proportional to 1,397,104.50, 1,928,004.21 and 761,200.50

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Solution

The fourth proportional to 1,397,104.50, 1,928,004.21 and 761,200.50 is: 1,050,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,104.50 : 1,928,004.21 = 761,200.50 : x
  2. Step 2: Convert to fraction form
    1,397,104.50/1,928,004.21 = 761,200.50/x
  3. Step 3: Cross multiply
    1,397,104.50x = 1,928,004.21 × 761,200.50
  4. Step 4: Simplify right side
    1,397,104.50x = 1,467,597,768,654.11
  5. Step 5: Solve for x
    x = 1,467,597,768,654.11/1,397,104.50
  6. Step 6: Final answer
    x = 1,050,456.69

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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.