Home / 790,156.12-1,090,422.04-463,664.36

Finding the Fourth Proportional to 790,156.12, 1,090,422.04 and 463,664.36

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Solution

The fourth proportional to 790,156.12, 1,090,422.04 and 463,664.36 is: 639,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,156.12 : 1,090,422.04 = 463,664.36 : x
  2. Step 2: Convert to fraction form
    790,156.12/1,090,422.04 = 463,664.36/x
  3. Step 3: Cross multiply
    790,156.12x = 1,090,422.04 × 463,664.36
  4. Step 4: Simplify right side
    790,156.12x = 505,589,837,306.49
  5. Step 5: Solve for x
    x = 505,589,837,306.49/790,156.12
  6. Step 6: Final answer
    x = 639,860.69

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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.