Home / 1,380,438.96-1,904,712.93-870,846

Finding the Fourth Proportional to 1,380,438.96, 1,904,712.93 and 870,846

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Solution

The fourth proportional to 1,380,438.96, 1,904,712.93 and 870,846 is: 1,201,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,438.96 : 1,904,712.93 = 870,846 : x
  2. Step 2: Convert to fraction form
    1,380,438.96/1,904,712.93 = 870,846/x
  3. Step 3: Cross multiply
    1,380,438.96x = 1,904,712.93 × 870,846
  4. Step 4: Simplify right side
    1,380,438.96x = 1,658,711,636,238.78
  5. Step 5: Solve for x
    x = 1,658,711,636,238.78/1,380,438.96
  6. Step 6: Final answer
    x = 1,201,582.75

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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.