Home / 1,330,651.72-1,835,719.98-814,428.60

Finding the Fourth Proportional to 1,330,651.72, 1,835,719.98 and 814,428.60

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Solution

The fourth proportional to 1,330,651.72, 1,835,719.98 and 814,428.60 is: 1,123,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,651.72 : 1,835,719.98 = 814,428.60 : x
  2. Step 2: Convert to fraction form
    1,330,651.72/1,835,719.98 = 814,428.60/x
  3. Step 3: Cross multiply
    1,330,651.72x = 1,835,719.98 × 814,428.60
  4. Step 4: Simplify right side
    1,330,651.72x = 1,495,062,853,303.43
  5. Step 5: Solve for x
    x = 1,495,062,853,303.43/1,330,651.72
  6. Step 6: Final answer
    x = 1,123,556.85

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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.