Home / 1,361,818.50-1,879,237.58-781,011.63

Finding the Fourth Proportional to 1,361,818.50, 1,879,237.58 and 781,011.63

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Solution

The fourth proportional to 1,361,818.50, 1,879,237.58 and 781,011.63 is: 1,077,754.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,818.50 : 1,879,237.58 = 781,011.63 : x
  2. Step 2: Convert to fraction form
    1,361,818.50/1,879,237.58 = 781,011.63/x
  3. Step 3: Cross multiply
    1,361,818.50x = 1,879,237.58 × 781,011.63
  4. Step 4: Simplify right side
    1,361,818.50x = 1,467,706,401,608.00
  5. Step 5: Solve for x
    x = 1,467,706,401,608.00/1,361,818.50
  6. Step 6: Final answer
    x = 1,077,754.78

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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.