Home / 641,146.72-962,022.48-286,129.12

Finding the Fourth Proportional to 641,146.72, 962,022.48 and 286,129.12

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Solution

The fourth proportional to 641,146.72, 962,022.48 and 286,129.12 is: 429,328.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,146.72 : 962,022.48 = 286,129.12 : x
  2. Step 2: Convert to fraction form
    641,146.72/962,022.48 = 286,129.12/x
  3. Step 3: Cross multiply
    641,146.72x = 962,022.48 × 286,129.12
  4. Step 4: Simplify right side
    641,146.72x = 275,262,645,622.62
  5. Step 5: Solve for x
    x = 275,262,645,622.62/641,146.72
  6. Step 6: Final answer
    x = 429,328.63

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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.