Home / 810,502.71-1,215,615.70-270,684.28

Finding the Fourth Proportional to 810,502.71, 1,215,615.70 and 270,684.28

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Solution

The fourth proportional to 810,502.71, 1,215,615.70 and 270,684.28 is: 405,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,502.71 : 1,215,615.70 = 270,684.28 : x
  2. Step 2: Convert to fraction form
    810,502.71/1,215,615.70 = 270,684.28/x
  3. Step 3: Cross multiply
    810,502.71x = 1,215,615.70 × 270,684.28
  4. Step 4: Simplify right side
    810,502.71x = 329,048,062,369.07
  5. Step 5: Solve for x
    x = 329,048,062,369.07/810,502.71
  6. Step 6: Final answer
    x = 405,980.21

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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.