Home / 460,620.64-690,955.68-145,102.24

Finding the Fourth Proportional to 460,620.64, 690,955.68 and 145,102.24

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Solution

The fourth proportional to 460,620.64, 690,955.68 and 145,102.24 is: 217,661.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,620.64 : 690,955.68 = 145,102.24 : x
  2. Step 2: Convert to fraction form
    460,620.64/690,955.68 = 145,102.24/x
  3. Step 3: Cross multiply
    460,620.64x = 690,955.68 × 145,102.24
  4. Step 4: Simplify right side
    460,620.64x = 100,259,216,908.72
  5. Step 5: Solve for x
    x = 100,259,216,908.72/460,620.64
  6. Step 6: Final answer
    x = 217,661.15

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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.