Home / 918,476.27-1,377,239.75-412,604.72

Finding the Fourth Proportional to 918,476.27, 1,377,239.75 and 412,604.72

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Solution

The fourth proportional to 918,476.27, 1,377,239.75 and 412,604.72 is: 618,693.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,476.27 : 1,377,239.75 = 412,604.72 : x
  2. Step 2: Convert to fraction form
    918,476.27/1,377,239.75 = 412,604.72/x
  3. Step 3: Cross multiply
    918,476.27x = 1,377,239.75 × 412,604.72
  4. Step 4: Simplify right side
    918,476.27x = 568,255,612,472.40
  5. Step 5: Solve for x
    x = 568,255,612,472.40/918,476.27
  6. Step 6: Final answer
    x = 618,693.85

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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.