Home / 726,995.40-1,090,665.90-306,054.60

Finding the Fourth Proportional to 726,995.40, 1,090,665.90 and 306,054.60

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Solution

The fourth proportional to 726,995.40, 1,090,665.90 and 306,054.60 is: 459,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,995.40 : 1,090,665.90 = 306,054.60 : x
  2. Step 2: Convert to fraction form
    726,995.40/1,090,665.90 = 306,054.60/x
  3. Step 3: Cross multiply
    726,995.40x = 1,090,665.90 × 306,054.60
  4. Step 4: Simplify right side
    726,995.40x = 333,803,315,758.14
  5. Step 5: Solve for x
    x = 333,803,315,758.14/726,995.40
  6. Step 6: Final answer
    x = 459,154.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.