Home / 729,945.58-1,007,178.72-407,606.08

Finding the Fourth Proportional to 729,945.58, 1,007,178.72 and 407,606.08

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Solution

The fourth proportional to 729,945.58, 1,007,178.72 and 407,606.08 is: 562,414.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,945.58 : 1,007,178.72 = 407,606.08 : x
  2. Step 2: Convert to fraction form
    729,945.58/1,007,178.72 = 407,606.08/x
  3. Step 3: Cross multiply
    729,945.58x = 1,007,178.72 × 407,606.08
  4. Step 4: Simplify right side
    729,945.58x = 410,532,169,918.62
  5. Step 5: Solve for x
    x = 410,532,169,918.62/729,945.58
  6. Step 6: Final answer
    x = 562,414.76

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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.