Home / 729,564.75-1,006,782.60-407,304.81

Finding the Fourth Proportional to 729,564.75, 1,006,782.60 and 407,304.81

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Solution

The fourth proportional to 729,564.75, 1,006,782.60 and 407,304.81 is: 562,071.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,564.75 : 1,006,782.60 = 407,304.81 : x
  2. Step 2: Convert to fraction form
    729,564.75/1,006,782.60 = 407,304.81/x
  3. Step 3: Cross multiply
    729,564.75x = 1,006,782.60 × 407,304.81
  4. Step 4: Simplify right side
    729,564.75x = 410,067,395,604.31
  5. Step 5: Solve for x
    x = 410,067,395,604.31/729,564.75
  6. Step 6: Final answer
    x = 562,071.28

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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.