Home / 443,013.20-664,519.80-310,043.60

Finding the Fourth Proportional to 443,013.20, 664,519.80 and 310,043.60

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Solution

The fourth proportional to 443,013.20, 664,519.80 and 310,043.60 is: 465,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,013.20 : 664,519.80 = 310,043.60 : x
  2. Step 2: Convert to fraction form
    443,013.20/664,519.80 = 310,043.60/x
  3. Step 3: Cross multiply
    443,013.20x = 664,519.80 × 310,043.60
  4. Step 4: Simplify right side
    443,013.20x = 206,030,111,063.28
  5. Step 5: Solve for x
    x = 206,030,111,063.28/443,013.20
  6. Step 6: Final answer
    x = 465,065.40

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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.