Home / 1,687,916.88-2,530,125.72-1,055,378.16

Finding the Fourth Proportional to 1,687,916.88, 2,530,125.72 and 1,055,378.16

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Solution

The fourth proportional to 1,687,916.88, 2,530,125.72 and 1,055,378.16 is: 1,581,973.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,916.88 : 2,530,125.72 = 1,055,378.16 : x
  2. Step 2: Convert to fraction form
    1,687,916.88/2,530,125.72 = 1,055,378.16/x
  3. Step 3: Cross multiply
    1,687,916.88x = 2,530,125.72 × 1,055,378.16
  4. Step 4: Simplify right side
    1,687,916.88x = 2,670,239,426,942.28
  5. Step 5: Solve for x
    x = 2,670,239,426,942.28/1,687,916.88
  6. Step 6: Final answer
    x = 1,581,973.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.