Home / 1,230,800.84-1,698,590.52-687,042.56

Finding the Fourth Proportional to 1,230,800.84, 1,698,590.52 and 687,042.56

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Solution

The fourth proportional to 1,230,800.84, 1,698,590.52 and 687,042.56 is: 948,166.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,800.84 : 1,698,590.52 = 687,042.56 : x
  2. Step 2: Convert to fraction form
    1,230,800.84/1,698,590.52 = 687,042.56/x
  3. Step 3: Cross multiply
    1,230,800.84x = 1,698,590.52 × 687,042.56
  4. Step 4: Simplify right side
    1,230,800.84x = 1,167,003,979,252.53
  5. Step 5: Solve for x
    x = 1,167,003,979,252.53/1,230,800.84
  6. Step 6: Final answer
    x = 948,166.38

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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.