Home / 455,718.27-629,068.35-407,888.58

Finding the Fourth Proportional to 455,718.27, 629,068.35 and 407,888.58

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Solution

The fourth proportional to 455,718.27, 629,068.35 and 407,888.58 is: 563,044.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,718.27 : 629,068.35 = 407,888.58 : x
  2. Step 2: Convert to fraction form
    455,718.27/629,068.35 = 407,888.58/x
  3. Step 3: Cross multiply
    455,718.27x = 629,068.35 × 407,888.58
  4. Step 4: Simplify right side
    455,718.27x = 256,589,792,859.10
  5. Step 5: Solve for x
    x = 256,589,792,859.10/455,718.27
  6. Step 6: Final answer
    x = 563,044.79

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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.