Home / 1,215,218.69-1,677,001.79-705,953.87

Finding the Fourth Proportional to 1,215,218.69, 1,677,001.79 and 705,953.87

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Solution

The fourth proportional to 1,215,218.69, 1,677,001.79 and 705,953.87 is: 974,216.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,218.69 : 1,677,001.79 = 705,953.87 : x
  2. Step 2: Convert to fraction form
    1,215,218.69/1,677,001.79 = 705,953.87/x
  3. Step 3: Cross multiply
    1,215,218.69x = 1,677,001.79 × 705,953.87
  4. Step 4: Simplify right side
    1,215,218.69x = 1,183,885,903,647.43
  5. Step 5: Solve for x
    x = 1,183,885,903,647.43/1,215,218.69
  6. Step 6: Final answer
    x = 974,216.34

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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.