Home / 1,561,678.50-2,155,226.15-873,414.40

Finding the Fourth Proportional to 1,561,678.50, 2,155,226.15 and 873,414.40

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Solution

The fourth proportional to 1,561,678.50, 2,155,226.15 and 873,414.40 is: 1,205,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,678.50 : 2,155,226.15 = 873,414.40 : x
  2. Step 2: Convert to fraction form
    1,561,678.50/2,155,226.15 = 873,414.40/x
  3. Step 3: Cross multiply
    1,561,678.50x = 2,155,226.15 × 873,414.40
  4. Step 4: Simplify right side
    1,561,678.50x = 1,882,405,545,495.62
  5. Step 5: Solve for x
    x = 1,882,405,545,495.62/1,561,678.50
  6. Step 6: Final answer
    x = 1,205,373.29

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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.