Home / 426,529.36-639,792.21-173,753.47

Finding the Fourth Proportional to 426,529.36, 639,792.21 and 173,753.47

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Solution

The fourth proportional to 426,529.36, 639,792.21 and 173,753.47 is: 260,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,529.36 : 639,792.21 = 173,753.47 : x
  2. Step 2: Convert to fraction form
    426,529.36/639,792.21 = 173,753.47/x
  3. Step 3: Cross multiply
    426,529.36x = 639,792.21 × 173,753.47
  4. Step 4: Simplify right side
    426,529.36x = 111,166,116,566.47
  5. Step 5: Solve for x
    x = 111,166,116,566.47/426,529.36
  6. Step 6: Final answer
    x = 260,629.46

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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.