Home / 790,089.26-1,090,315-427,505.12

Finding the Fourth Proportional to 790,089.26, 1,090,315 and 427,505.12

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Solution

The fourth proportional to 790,089.26, 1,090,315 and 427,505.12 is: 589,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,089.26 : 1,090,315 = 427,505.12 : x
  2. Step 2: Convert to fraction form
    790,089.26/1,090,315 = 427,505.12/x
  3. Step 3: Cross multiply
    790,089.26x = 1,090,315 × 427,505.12
  4. Step 4: Simplify right side
    790,089.26x = 466,115,244,912.80
  5. Step 5: Solve for x
    x = 466,115,244,912.80/790,089.26
  6. Step 6: Final answer
    x = 589,952.64

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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.