Home / 465,276.10-642,005.52-290,825.67

Finding the Fourth Proportional to 465,276.10, 642,005.52 and 290,825.67

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Solution

The fourth proportional to 465,276.10, 642,005.52 and 290,825.67 is: 401,292.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,276.10 : 642,005.52 = 290,825.67 : x
  2. Step 2: Convert to fraction form
    465,276.10/642,005.52 = 290,825.67/x
  3. Step 3: Cross multiply
    465,276.10x = 642,005.52 × 290,825.67
  4. Step 4: Simplify right side
    465,276.10x = 186,711,685,497.70
  5. Step 5: Solve for x
    x = 186,711,685,497.70/465,276.10
  6. Step 6: Final answer
    x = 401,292.23

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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.