Home / 1,215,746.77-1,677,735.78-664,473.58

Finding the Fourth Proportional to 1,215,746.77, 1,677,735.78 and 664,473.58

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Solution

The fourth proportional to 1,215,746.77, 1,677,735.78 and 664,473.58 is: 916,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,746.77 : 1,677,735.78 = 664,473.58 : x
  2. Step 2: Convert to fraction form
    1,215,746.77/1,677,735.78 = 664,473.58/x
  3. Step 3: Cross multiply
    1,215,746.77x = 1,677,735.78 × 664,473.58
  4. Step 4: Simplify right side
    1,215,746.77x = 1,114,811,100,030.69
  5. Step 5: Solve for x
    x = 1,114,811,100,030.69/1,215,746.77
  6. Step 6: Final answer
    x = 916,976.40

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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.