Home / 674,933.84-931,643.26-388,568.06

Finding the Fourth Proportional to 674,933.84, 931,643.26 and 388,568.06

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Solution

The fourth proportional to 674,933.84, 931,643.26 and 388,568.06 is: 536,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,933.84 : 931,643.26 = 388,568.06 : x
  2. Step 2: Convert to fraction form
    674,933.84/931,643.26 = 388,568.06/x
  3. Step 3: Cross multiply
    674,933.84x = 931,643.26 × 388,568.06
  4. Step 4: Simplify right side
    674,933.84x = 362,006,814,150.28
  5. Step 5: Solve for x
    x = 362,006,814,150.28/674,933.84
  6. Step 6: Final answer
    x = 536,358.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.