Home / 751,300.20-1,036,792.30-407,145.65

Finding the Fourth Proportional to 751,300.20, 1,036,792.30 and 407,145.65

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Solution

The fourth proportional to 751,300.20, 1,036,792.30 and 407,145.65 is: 561,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,300.20 : 1,036,792.30 = 407,145.65 : x
  2. Step 2: Convert to fraction form
    751,300.20/1,036,792.30 = 407,145.65/x
  3. Step 3: Cross multiply
    751,300.20x = 1,036,792.30 × 407,145.65
  4. Step 4: Simplify right side
    751,300.20x = 422,125,474,898.50
  5. Step 5: Solve for x
    x = 422,125,474,898.50/751,300.20
  6. Step 6: Final answer
    x = 561,859.93

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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.