Home / 641,246.10-961,383.15-325,929.30

Finding the Fourth Proportional to 641,246.10, 961,383.15 and 325,929.30

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Solution

The fourth proportional to 641,246.10, 961,383.15 and 325,929.30 is: 488,646.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,246.10 : 961,383.15 = 325,929.30 : x
  2. Step 2: Convert to fraction form
    641,246.10/961,383.15 = 325,929.30/x
  3. Step 3: Cross multiply
    641,246.10x = 961,383.15 × 325,929.30
  4. Step 4: Simplify right side
    641,246.10x = 313,342,937,111.30
  5. Step 5: Solve for x
    x = 313,342,937,111.30/641,246.10
  6. Step 6: Final answer
    x = 488,646.93

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1.5x scale

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.