Home / 729,928.76-1,007,155.59-407,589.26

Finding the Fourth Proportional to 729,928.76, 1,007,155.59 and 407,589.26

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Solution

The fourth proportional to 729,928.76, 1,007,155.59 and 407,589.26 is: 562,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,928.76 : 1,007,155.59 = 407,589.26 : x
  2. Step 2: Convert to fraction form
    729,928.76/1,007,155.59 = 407,589.26/x
  3. Step 3: Cross multiply
    729,928.76x = 1,007,155.59 × 407,589.26
  4. Step 4: Simplify right side
    729,928.76x = 410,505,801,632.96
  5. Step 5: Solve for x
    x = 410,505,801,632.96/729,928.76
  6. Step 6: Final answer
    x = 562,391.60

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Double scale
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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.