Home / 729,794.78-1,007,107.26-407,510.36

Finding the Fourth Proportional to 729,794.78, 1,007,107.26 and 407,510.36

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Solution

The fourth proportional to 729,794.78, 1,007,107.26 and 407,510.36 is: 562,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,794.78 : 1,007,107.26 = 407,510.36 : x
  2. Step 2: Convert to fraction form
    729,794.78/1,007,107.26 = 407,510.36/x
  3. Step 3: Cross multiply
    729,794.78x = 1,007,107.26 × 407,510.36
  4. Step 4: Simplify right side
    729,794.78x = 410,406,642,081.21
  5. Step 5: Solve for x
    x = 410,406,642,081.21/729,794.78
  6. Step 6: Final answer
    x = 562,358.97

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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.