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Finding the Fourth Proportional to 490,294.47, 676,532.72 and 275,393.37

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Solution

The fourth proportional to 490,294.47, 676,532.72 and 275,393.37 is: 380,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,294.47 : 676,532.72 = 275,393.37 : x
  2. Step 2: Convert to fraction form
    490,294.47/676,532.72 = 275,393.37/x
  3. Step 3: Cross multiply
    490,294.47x = 676,532.72 × 275,393.37
  4. Step 4: Simplify right side
    490,294.47x = 186,312,625,676.07
  5. Step 5: Solve for x
    x = 186,312,625,676.07/490,294.47
  6. Step 6: Final answer
    x = 380,001.48

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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.