Home / 1,388,204.76-2,078,550.63-907,234.32

Finding the Fourth Proportional to 1,388,204.76, 2,078,550.63 and 907,234.32

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Solution

The fourth proportional to 1,388,204.76, 2,078,550.63 and 907,234.32 is: 1,358,396.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,204.76 : 2,078,550.63 = 907,234.32 : x
  2. Step 2: Convert to fraction form
    1,388,204.76/2,078,550.63 = 907,234.32/x
  3. Step 3: Cross multiply
    1,388,204.76x = 2,078,550.63 × 907,234.32
  4. Step 4: Simplify right side
    1,388,204.76x = 1,885,732,467,393.62
  5. Step 5: Solve for x
    x = 1,885,732,467,393.62/1,388,204.76
  6. Step 6: Final answer
    x = 1,358,396.49

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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.