Home / 1,387,529.06-2,081,651.80-427,963.10

Finding the Fourth Proportional to 1,387,529.06, 2,081,651.80 and 427,963.10

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Solution

The fourth proportional to 1,387,529.06, 2,081,651.80 and 427,963.10 is: 642,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,529.06 : 2,081,651.80 = 427,963.10 : x
  2. Step 2: Convert to fraction form
    1,387,529.06/2,081,651.80 = 427,963.10/x
  3. Step 3: Cross multiply
    1,387,529.06x = 2,081,651.80 × 427,963.10
  4. Step 4: Simplify right side
    1,387,529.06x = 890,870,157,448.58
  5. Step 5: Solve for x
    x = 890,870,157,448.58/1,387,529.06
  6. Step 6: Final answer
    x = 642,055.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.