Home / 729,927.76-1,007,154.21-407,588.26

Finding the Fourth Proportional to 729,927.76, 1,007,154.21 and 407,588.26

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Solution

The fourth proportional to 729,927.76, 1,007,154.21 and 407,588.26 is: 562,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,927.76 : 1,007,154.21 = 407,588.26 : x
  2. Step 2: Convert to fraction form
    729,927.76/1,007,154.21 = 407,588.26/x
  3. Step 3: Cross multiply
    729,927.76x = 1,007,154.21 × 407,588.26
  4. Step 4: Simplify right side
    729,927.76x = 410,504,229,487.69
  5. Step 5: Solve for x
    x = 410,504,229,487.69/729,927.76
  6. Step 6: Final answer
    x = 562,390.22

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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.