Home / 778,553.64-1,074,404.74-456,199.56

Finding the Fourth Proportional to 778,553.64, 1,074,404.74 and 456,199.56

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Solution

The fourth proportional to 778,553.64, 1,074,404.74 and 456,199.56 is: 629,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,553.64 : 1,074,404.74 = 456,199.56 : x
  2. Step 2: Convert to fraction form
    778,553.64/1,074,404.74 = 456,199.56/x
  3. Step 3: Cross multiply
    778,553.64x = 1,074,404.74 × 456,199.56
  4. Step 4: Simplify right side
    778,553.64x = 490,142,969,649.91
  5. Step 5: Solve for x
    x = 490,142,969,649.91/778,553.64
  6. Step 6: Final answer
    x = 629,555.81

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1.5x scale

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.