Home / 641,379.48-961,784.94-341,804.28

Finding the Fourth Proportional to 641,379.48, 961,784.94 and 341,804.28

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Solution

The fourth proportional to 641,379.48, 961,784.94 and 341,804.28 is: 512,554.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,379.48 : 961,784.94 = 341,804.28 : x
  2. Step 2: Convert to fraction form
    641,379.48/961,784.94 = 341,804.28/x
  3. Step 3: Cross multiply
    641,379.48x = 961,784.94 × 341,804.28
  4. Step 4: Simplify right side
    641,379.48x = 328,742,208,931.54
  5. Step 5: Solve for x
    x = 328,742,208,931.54/641,379.48
  6. Step 6: Final answer
    x = 512,554.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.