Home / 500,428.28-690,592.41-270,988.26

Finding the Fourth Proportional to 500,428.28, 690,592.41 and 270,988.26

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Solution

The fourth proportional to 500,428.28, 690,592.41 and 270,988.26 is: 373,964.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,428.28 : 690,592.41 = 270,988.26 : x
  2. Step 2: Convert to fraction form
    500,428.28/690,592.41 = 270,988.26/x
  3. Step 3: Cross multiply
    500,428.28x = 690,592.41 × 270,988.26
  4. Step 4: Simplify right side
    500,428.28x = 187,142,435,555.11
  5. Step 5: Solve for x
    x = 187,142,435,555.11/500,428.28
  6. Step 6: Final answer
    x = 373,964.55

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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.