Home / 455,851.20-629,114.58-302,618.64

Finding the Fourth Proportional to 455,851.20, 629,114.58 and 302,618.64

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Solution

The fourth proportional to 455,851.20, 629,114.58 and 302,618.64 is: 417,640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,851.20 : 629,114.58 = 302,618.64 : x
  2. Step 2: Convert to fraction form
    455,851.20/629,114.58 = 302,618.64/x
  3. Step 3: Cross multiply
    455,851.20x = 629,114.58 × 302,618.64
  4. Step 4: Simplify right side
    455,851.20x = 190,381,798,603.77
  5. Step 5: Solve for x
    x = 190,381,798,603.77/455,851.20
  6. Step 6: Final answer
    x = 417,640.23

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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.