Home / 727,706.34-1,091,756.43-412,384.68

Finding the Fourth Proportional to 727,706.34, 1,091,756.43 and 412,384.68

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Solution

The fourth proportional to 727,706.34, 1,091,756.43 and 412,384.68 is: 618,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,706.34 : 1,091,756.43 = 412,384.68 : x
  2. Step 2: Convert to fraction form
    727,706.34/1,091,756.43 = 412,384.68/x
  3. Step 3: Cross multiply
    727,706.34x = 1,091,756.43 × 412,384.68
  4. Step 4: Simplify right side
    727,706.34x = 450,223,626,023.49
  5. Step 5: Solve for x
    x = 450,223,626,023.49/727,706.34
  6. Step 6: Final answer
    x = 618,688.61

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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.