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Finding the Fourth Proportional to 497,348.36, 686,340.72 and 270,993.86

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Solution

The fourth proportional to 497,348.36, 686,340.72 and 270,993.86 is: 373,971.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,348.36 : 686,340.72 = 270,993.86 : x
  2. Step 2: Convert to fraction form
    497,348.36/686,340.72 = 270,993.86/x
  3. Step 3: Cross multiply
    497,348.36x = 686,340.72 × 270,993.86
  4. Step 4: Simplify right side
    497,348.36x = 185,994,117,556.28
  5. Step 5: Solve for x
    x = 185,994,117,556.28/497,348.36
  6. Step 6: Final answer
    x = 373,971.51

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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.