Home / 790,792.62-1,091,291.85-428,216.46

Finding the Fourth Proportional to 790,792.62, 1,091,291.85 and 428,216.46

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Solution

The fourth proportional to 790,792.62, 1,091,291.85 and 428,216.46 is: 590,937.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,792.62 : 1,091,291.85 = 428,216.46 : x
  2. Step 2: Convert to fraction form
    790,792.62/1,091,291.85 = 428,216.46/x
  3. Step 3: Cross multiply
    790,792.62x = 1,091,291.85 × 428,216.46
  4. Step 4: Simplify right side
    790,792.62x = 467,309,133,947.55
  5. Step 5: Solve for x
    x = 467,309,133,947.55/790,792.62
  6. Step 6: Final answer
    x = 590,937.65

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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.