Home / 790,394.52-1,090,446.70-518,612.44

Finding the Fourth Proportional to 790,394.52, 1,090,446.70 and 518,612.44

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Solution

The fourth proportional to 790,394.52, 1,090,446.70 and 518,612.44 is: 715,489.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,394.52 : 1,090,446.70 = 518,612.44 : x
  2. Step 2: Convert to fraction form
    790,394.52/1,090,446.70 = 518,612.44/x
  3. Step 3: Cross multiply
    790,394.52x = 1,090,446.70 × 518,612.44
  4. Step 4: Simplify right side
    790,394.52x = 565,519,223,776.95
  5. Step 5: Solve for x
    x = 565,519,223,776.95/790,394.52
  6. Step 6: Final answer
    x = 715,489.81

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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.