Home / 1,368,355.87-1,888,275.40-756,469.72

Finding the Fourth Proportional to 1,368,355.87, 1,888,275.40 and 756,469.72

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Solution

The fourth proportional to 1,368,355.87, 1,888,275.40 and 756,469.72 is: 1,043,897.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,355.87 : 1,888,275.40 = 756,469.72 : x
  2. Step 2: Convert to fraction form
    1,368,355.87/1,888,275.40 = 756,469.72/x
  3. Step 3: Cross multiply
    1,368,355.87x = 1,888,275.40 × 756,469.72
  4. Step 4: Simplify right side
    1,368,355.87x = 1,428,423,163,120.89
  5. Step 5: Solve for x
    x = 1,428,423,163,120.89/1,368,355.87
  6. Step 6: Final answer
    x = 1,043,897.42

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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.