Home / 729,738.23-1,007,101.01-407,510.60

Finding the Fourth Proportional to 729,738.23, 1,007,101.01 and 407,510.60

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Solution

The fourth proportional to 729,738.23, 1,007,101.01 and 407,510.60 is: 562,399.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,738.23 : 1,007,101.01 = 407,510.60 : x
  2. Step 2: Convert to fraction form
    729,738.23/1,007,101.01 = 407,510.60/x
  3. Step 3: Cross multiply
    729,738.23x = 1,007,101.01 × 407,510.60
  4. Step 4: Simplify right side
    729,738.23x = 410,404,331,109.81
  5. Step 5: Solve for x
    x = 410,404,331,109.81/729,738.23
  6. Step 6: Final answer
    x = 562,399.39

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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.