Home / 665,148.40-996,628.20-384,175.60

Finding the Fourth Proportional to 665,148.40, 996,628.20 and 384,175.60

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Solution

The fourth proportional to 665,148.40, 996,628.20 and 384,175.60 is: 575,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,148.40 : 996,628.20 = 384,175.60 : x
  2. Step 2: Convert to fraction form
    665,148.40/996,628.20 = 384,175.60/x
  3. Step 3: Cross multiply
    665,148.40x = 996,628.20 × 384,175.60
  4. Step 4: Simplify right side
    665,148.40x = 382,880,236,711.92
  5. Step 5: Solve for x
    x = 382,880,236,711.92/665,148.40
  6. Step 6: Final answer
    x = 575,631.30

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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.