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Finding the Fourth Proportional to 560,648.39, 773,673.12 and 305,999.57

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Solution

The fourth proportional to 560,648.39, 773,673.12 and 305,999.57 is: 422,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,648.39 : 773,673.12 = 305,999.57 : x
  2. Step 2: Convert to fraction form
    560,648.39/773,673.12 = 305,999.57/x
  3. Step 3: Cross multiply
    560,648.39x = 773,673.12 × 305,999.57
  4. Step 4: Simplify right side
    560,648.39x = 236,743,643,974.74
  5. Step 5: Solve for x
    x = 236,743,643,974.74/560,648.39
  6. Step 6: Final answer
    x = 422,267.59

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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.