Home / 1,215,748.77-1,677,738.54-664,475.58

Finding the Fourth Proportional to 1,215,748.77, 1,677,738.54 and 664,475.58

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Solution

The fourth proportional to 1,215,748.77, 1,677,738.54 and 664,475.58 is: 916,979.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,748.77 : 1,677,738.54 = 664,475.58 : x
  2. Step 2: Convert to fraction form
    1,215,748.77/1,677,738.54 = 664,475.58/x
  3. Step 3: Cross multiply
    1,215,748.77x = 1,677,738.54 × 664,475.58
  4. Step 4: Simplify right side
    1,215,748.77x = 1,114,816,289,454.85
  5. Step 5: Solve for x
    x = 1,114,816,289,454.85/1,215,748.77
  6. Step 6: Final answer
    x = 916,979.16

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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.