Home / 790,854.93-1,091,374.38-428,270.49

Finding the Fourth Proportional to 790,854.93, 1,091,374.38 and 428,270.49

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Solution

The fourth proportional to 790,854.93, 1,091,374.38 and 428,270.49 is: 591,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,854.93 : 1,091,374.38 = 428,270.49 : x
  2. Step 2: Convert to fraction form
    790,854.93/1,091,374.38 = 428,270.49/x
  3. Step 3: Cross multiply
    790,854.93x = 1,091,374.38 × 428,270.49
  4. Step 4: Simplify right side
    790,854.93x = 467,403,440,496.05
  5. Step 5: Solve for x
    x = 467,403,440,496.05/790,854.93
  6. Step 6: Final answer
    x = 591,010.34

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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.