Home / 729,989.65-1,007,239.41-407,650.15

Finding the Fourth Proportional to 729,989.65, 1,007,239.41 and 407,650.15

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Solution

The fourth proportional to 729,989.65, 1,007,239.41 and 407,650.15 is: 562,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,989.65 : 1,007,239.41 = 407,650.15 : x
  2. Step 2: Convert to fraction form
    729,989.65/1,007,239.41 = 407,650.15/x
  3. Step 3: Cross multiply
    729,989.65x = 1,007,239.41 × 407,650.15
  4. Step 4: Simplify right side
    729,989.65x = 410,601,295,073.44
  5. Step 5: Solve for x
    x = 410,601,295,073.44/729,989.65
  6. Step 6: Final answer
    x = 562,475.50

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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.