Home / 537,765.28-742,033.76-311,367.04

Finding the Fourth Proportional to 537,765.28, 742,033.76 and 311,367.04

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Solution

The fourth proportional to 537,765.28, 742,033.76 and 311,367.04 is: 429,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,765.28 : 742,033.76 = 311,367.04 : x
  2. Step 2: Convert to fraction form
    537,765.28/742,033.76 = 311,367.04/x
  3. Step 3: Cross multiply
    537,765.28x = 742,033.76 × 311,367.04
  4. Step 4: Simplify right side
    537,765.28x = 231,044,855,431.27
  5. Step 5: Solve for x
    x = 231,044,855,431.27/537,765.28
  6. Step 6: Final answer
    x = 429,638.85

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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.