Home / 724,358.92-1,086,760.86-345,762.76

Finding the Fourth Proportional to 724,358.92, 1,086,760.86 and 345,762.76

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Solution

The fourth proportional to 724,358.92, 1,086,760.86 and 345,762.76 is: 518,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,358.92 : 1,086,760.86 = 345,762.76 : x
  2. Step 2: Convert to fraction form
    724,358.92/1,086,760.86 = 345,762.76/x
  3. Step 3: Cross multiply
    724,358.92x = 1,086,760.86 × 345,762.76
  4. Step 4: Simplify right side
    724,358.92x = 375,761,434,413.57
  5. Step 5: Solve for x
    x = 375,761,434,413.57/724,358.92
  6. Step 6: Final answer
    x = 518,750.34

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1.5x scale

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.