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Finding the Fourth Proportional to 460,422.63, 690,402.42 and 268,358.81

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Solution

The fourth proportional to 460,422.63, 690,402.42 and 268,358.81 is: 402,403.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,422.63 : 690,402.42 = 268,358.81 : x
  2. Step 2: Convert to fraction form
    460,422.63/690,402.42 = 268,358.81/x
  3. Step 3: Cross multiply
    460,422.63x = 690,402.42 × 268,358.81
  4. Step 4: Simplify right side
    460,422.63x = 185,275,568,400.31
  5. Step 5: Solve for x
    x = 185,275,568,400.31/460,422.63
  6. Step 6: Final answer
    x = 402,403.26

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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.