Home / 810,597.66-1,215,967.77-211,554.06

Finding the Fourth Proportional to 810,597.66, 1,215,967.77 and 211,554.06

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Solution

The fourth proportional to 810,597.66, 1,215,967.77 and 211,554.06 is: 317,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,597.66 : 1,215,967.77 = 211,554.06 : x
  2. Step 2: Convert to fraction form
    810,597.66/1,215,967.77 = 211,554.06/x
  3. Step 3: Cross multiply
    810,597.66x = 1,215,967.77 × 211,554.06
  4. Step 4: Simplify right side
    810,597.66x = 257,242,918,572.65
  5. Step 5: Solve for x
    x = 257,242,918,572.65/810,597.66
  6. Step 6: Final answer
    x = 317,349.69

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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.