Home / 455,610.36-629,037.90-407,780.76

Finding the Fourth Proportional to 455,610.36, 629,037.90 and 407,780.76

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Solution

The fourth proportional to 455,610.36, 629,037.90 and 407,780.76 is: 563,002.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,610.36 : 629,037.90 = 407,780.76 : x
  2. Step 2: Convert to fraction form
    455,610.36/629,037.90 = 407,780.76/x
  3. Step 3: Cross multiply
    455,610.36x = 629,037.90 × 407,780.76
  4. Step 4: Simplify right side
    455,610.36x = 256,509,552,930.80
  5. Step 5: Solve for x
    x = 256,509,552,930.80/455,610.36
  6. Step 6: Final answer
    x = 563,002.02

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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.