Home / 1,316,033.92-1,815,815.56-764,421.86

Finding the Fourth Proportional to 1,316,033.92, 1,815,815.56 and 764,421.86

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Solution

The fourth proportional to 1,316,033.92, 1,815,815.56 and 764,421.86 is: 1,054,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,033.92 : 1,815,815.56 = 764,421.86 : x
  2. Step 2: Convert to fraction form
    1,316,033.92/1,815,815.56 = 764,421.86/x
  3. Step 3: Cross multiply
    1,316,033.92x = 1,815,815.56 × 764,421.86
  4. Step 4: Simplify right side
    1,316,033.92x = 1,388,049,107,792.14
  5. Step 5: Solve for x
    x = 1,388,049,107,792.14/1,316,033.92
  6. Step 6: Final answer
    x = 1,054,721.38

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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.