Home / 1,308,379.10-1,805,298.45-764,409.83

Finding the Fourth Proportional to 1,308,379.10, 1,805,298.45 and 764,409.83

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Solution

The fourth proportional to 1,308,379.10, 1,805,298.45 and 764,409.83 is: 1,054,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,379.10 : 1,805,298.45 = 764,409.83 : x
  2. Step 2: Convert to fraction form
    1,308,379.10/1,805,298.45 = 764,409.83/x
  3. Step 3: Cross multiply
    1,308,379.10x = 1,805,298.45 × 764,409.83
  4. Step 4: Simplify right side
    1,308,379.10x = 1,379,987,872,237.27
  5. Step 5: Solve for x
    x = 1,379,987,872,237.27/1,308,379.10
  6. Step 6: Final answer
    x = 1,054,730.91

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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.