Home / 465,982.20-699,491.70-288,689.40

Finding the Fourth Proportional to 465,982.20, 699,491.70 and 288,689.40

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Solution

The fourth proportional to 465,982.20, 699,491.70 and 288,689.40 is: 433,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,982.20 : 699,491.70 = 288,689.40 : x
  2. Step 2: Convert to fraction form
    465,982.20/699,491.70 = 288,689.40/x
  3. Step 3: Cross multiply
    465,982.20x = 699,491.70 × 288,689.40
  4. Step 4: Simplify right side
    465,982.20x = 201,935,839,177.98
  5. Step 5: Solve for x
    x = 201,935,839,177.98/465,982.20
  6. Step 6: Final answer
    x = 433,355.26

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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.