Home / 729,945.96-1,007,315.46-407,661.72

Finding the Fourth Proportional to 729,945.96, 1,007,315.46 and 407,661.72

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Solution

The fourth proportional to 729,945.96, 1,007,315.46 and 407,661.72 is: 562,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,945.96 : 1,007,315.46 = 407,661.72 : x
  2. Step 2: Convert to fraction form
    729,945.96/1,007,315.46 = 407,661.72/x
  3. Step 3: Cross multiply
    729,945.96x = 1,007,315.46 × 407,661.72
  4. Step 4: Simplify right side
    729,945.96x = 410,643,953,006.19
  5. Step 5: Solve for x
    x = 410,643,953,006.19/729,945.96
  6. Step 6: Final answer
    x = 562,567.61

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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.