Home / 1,215,859.01-1,677,897.87-664,590.46

Finding the Fourth Proportional to 1,215,859.01, 1,677,897.87 and 664,590.46

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Solution

The fourth proportional to 1,215,859.01, 1,677,897.87 and 664,590.46 is: 917,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,859.01 : 1,677,897.87 = 664,590.46 : x
  2. Step 2: Convert to fraction form
    1,215,859.01/1,677,897.87 = 664,590.46/x
  3. Step 3: Cross multiply
    1,215,859.01x = 1,677,897.87 × 664,590.46
  4. Step 4: Simplify right side
    1,215,859.01x = 1,115,114,917,256.32
  5. Step 5: Solve for x
    x = 1,115,114,917,256.32/1,215,859.01
  6. Step 6: Final answer
    x = 917,141.63

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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.