Home / 460,534.26-690,958.29-280,979.16

Finding the Fourth Proportional to 460,534.26, 690,958.29 and 280,979.16

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Solution

The fourth proportional to 460,534.26, 690,958.29 and 280,979.16 is: 421,564.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,534.26 : 690,958.29 = 280,979.16 : x
  2. Step 2: Convert to fraction form
    460,534.26/690,958.29 = 280,979.16/x
  3. Step 3: Cross multiply
    460,534.26x = 690,958.29 × 280,979.16
  4. Step 4: Simplify right side
    460,534.26x = 194,144,879,919.24
  5. Step 5: Solve for x
    x = 194,144,879,919.24/460,534.26
  6. Step 6: Final answer
    x = 421,564.47

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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.