Home / 1,186,249.66-1,637,025.42-642,386.04

Finding the Fourth Proportional to 1,186,249.66, 1,637,025.42 and 642,386.04

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Solution

The fourth proportional to 1,186,249.66, 1,637,025.42 and 642,386.04 is: 886,493.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,249.66 : 1,637,025.42 = 642,386.04 : x
  2. Step 2: Convert to fraction form
    1,186,249.66/1,637,025.42 = 642,386.04/x
  3. Step 3: Cross multiply
    1,186,249.66x = 1,637,025.42 × 642,386.04
  4. Step 4: Simplify right side
    1,186,249.66x = 1,051,602,277,813.77
  5. Step 5: Solve for x
    x = 1,051,602,277,813.77/1,186,249.66
  6. Step 6: Final answer
    x = 886,493.22

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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.