Home / 918,620.80-1,267,738.90-510,764.54

Finding the Fourth Proportional to 918,620.80, 1,267,738.90 and 510,764.54

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Solution

The fourth proportional to 918,620.80, 1,267,738.90 and 510,764.54 is: 704,878.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,620.80 : 1,267,738.90 = 510,764.54 : x
  2. Step 2: Convert to fraction form
    918,620.80/1,267,738.90 = 510,764.54/x
  3. Step 3: Cross multiply
    918,620.80x = 1,267,738.90 × 510,764.54
  4. Step 4: Simplify right side
    918,620.80x = 647,516,068,483.00
  5. Step 5: Solve for x
    x = 647,516,068,483.00/918,620.80
  6. Step 6: Final answer
    x = 704,878.52

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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.