Home / 810,393.16-1,215,590.28-211,352.80

Finding the Fourth Proportional to 810,393.16, 1,215,590.28 and 211,352.80

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Solution

The fourth proportional to 810,393.16, 1,215,590.28 and 211,352.80 is: 317,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,393.16 : 1,215,590.28 = 211,352.80 : x
  2. Step 2: Convert to fraction form
    810,393.16/1,215,590.28 = 211,352.80/x
  3. Step 3: Cross multiply
    810,393.16x = 1,215,590.28 × 211,352.80
  4. Step 4: Simplify right side
    810,393.16x = 256,918,409,330.78
  5. Step 5: Solve for x
    x = 256,918,409,330.78/810,393.16
  6. Step 6: Final answer
    x = 317,029.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.