Home / 790,240.70-1,090,532.27-427,664.65

Finding the Fourth Proportional to 790,240.70, 1,090,532.27 and 427,664.65

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Solution

The fourth proportional to 790,240.70, 1,090,532.27 and 427,664.65 is: 590,177.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,240.70 : 1,090,532.27 = 427,664.65 : x
  2. Step 2: Convert to fraction form
    790,240.70/1,090,532.27 = 427,664.65/x
  3. Step 3: Cross multiply
    790,240.70x = 1,090,532.27 × 427,664.65
  4. Step 4: Simplify right side
    790,240.70x = 466,382,101,563.26
  5. Step 5: Solve for x
    x = 466,382,101,563.26/790,240.70
  6. Step 6: Final answer
    x = 590,177.27

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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.