Home / 720,952.51-1,081,416.88-215,514.67

Finding the Fourth Proportional to 720,952.51, 1,081,416.88 and 215,514.67

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Solution

The fourth proportional to 720,952.51, 1,081,416.88 and 215,514.67 is: 323,268.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,952.51 : 1,081,416.88 = 215,514.67 : x
  2. Step 2: Convert to fraction form
    720,952.51/1,081,416.88 = 215,514.67/x
  3. Step 3: Cross multiply
    720,952.51x = 1,081,416.88 × 215,514.67
  4. Step 4: Simplify right side
    720,952.51x = 233,061,202,025.63
  5. Step 5: Solve for x
    x = 233,061,202,025.63/720,952.51
  6. Step 6: Final answer
    x = 323,268.45

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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.