Home / 912,704.70-1,369,834.65-408,042.30

Finding the Fourth Proportional to 912,704.70, 1,369,834.65 and 408,042.30

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Solution

The fourth proportional to 912,704.70, 1,369,834.65 and 408,042.30 is: 612,411.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,704.70 : 1,369,834.65 = 408,042.30 : x
  2. Step 2: Convert to fraction form
    912,704.70/1,369,834.65 = 408,042.30/x
  3. Step 3: Cross multiply
    912,704.70x = 1,369,834.65 × 408,042.30
  4. Step 4: Simplify right side
    912,704.70x = 558,950,481,205.70
  5. Step 5: Solve for x
    x = 558,950,481,205.70/912,704.70
  6. Step 6: Final answer
    x = 612,411.09

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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.