Home / 726,984.64-1,090,399.08-253,678.96

Finding the Fourth Proportional to 726,984.64, 1,090,399.08 and 253,678.96

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Solution

The fourth proportional to 726,984.64, 1,090,399.08 and 253,678.96 is: 380,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,984.64 : 1,090,399.08 = 253,678.96 : x
  2. Step 2: Convert to fraction form
    726,984.64/1,090,399.08 = 253,678.96/x
  3. Step 3: Cross multiply
    726,984.64x = 1,090,399.08 × 253,678.96
  4. Step 4: Simplify right side
    726,984.64x = 276,611,304,599.36
  5. Step 5: Solve for x
    x = 276,611,304,599.36/726,984.64
  6. Step 6: Final answer
    x = 380,491.26

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1.5x scale

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.