Home / 791,771.76-1,091,939.54-617,385.20

Finding the Fourth Proportional to 791,771.76, 1,091,939.54 and 617,385.20

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Solution

The fourth proportional to 791,771.76, 1,091,939.54 and 617,385.20 is: 851,441.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,771.76 : 1,091,939.54 = 617,385.20 : x
  2. Step 2: Convert to fraction form
    791,771.76/1,091,939.54 = 617,385.20/x
  3. Step 3: Cross multiply
    791,771.76x = 1,091,939.54 × 617,385.20
  4. Step 4: Simplify right side
    791,771.76x = 674,147,302,744.18
  5. Step 5: Solve for x
    x = 674,147,302,744.18/791,771.76
  6. Step 6: Final answer
    x = 851,441.46

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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.