Home / 742,415.75-1,024,004.48-681,358.76

Finding the Fourth Proportional to 742,415.75, 1,024,004.48 and 681,358.76

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Solution

The fourth proportional to 742,415.75, 1,024,004.48 and 681,358.76 is: 939,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,415.75 : 1,024,004.48 = 681,358.76 : x
  2. Step 2: Convert to fraction form
    742,415.75/1,024,004.48 = 681,358.76/x
  3. Step 3: Cross multiply
    742,415.75x = 1,024,004.48 × 681,358.76
  4. Step 4: Simplify right side
    742,415.75x = 697,714,419,310.62
  5. Step 5: Solve for x
    x = 697,714,419,310.62/742,415.75
  6. Step 6: Final answer
    x = 939,789.35

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1.5x scale

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.