Home / 1,368,369.90-1,888,294.68-756,483.72

Finding the Fourth Proportional to 1,368,369.90, 1,888,294.68 and 756,483.72

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Solution

The fourth proportional to 1,368,369.90, 1,888,294.68 and 756,483.72 is: 1,043,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,369.90 : 1,888,294.68 = 756,483.72 : x
  2. Step 2: Convert to fraction form
    1,368,369.90/1,888,294.68 = 756,483.72/x
  3. Step 3: Cross multiply
    1,368,369.90x = 1,888,294.68 × 756,483.72
  4. Step 4: Simplify right side
    1,368,369.90x = 1,428,464,183,982.61
  5. Step 5: Solve for x
    x = 1,428,464,183,982.61/1,368,369.90
  6. Step 6: Final answer
    x = 1,043,916.70

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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.