Home / 864,901.80-1,295,384.40-443,685.60

Finding the Fourth Proportional to 864,901.80, 1,295,384.40 and 443,685.60

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Solution

The fourth proportional to 864,901.80, 1,295,384.40 and 443,685.60 is: 664,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,901.80 : 1,295,384.40 = 443,685.60 : x
  2. Step 2: Convert to fraction form
    864,901.80/1,295,384.40 = 443,685.60/x
  3. Step 3: Cross multiply
    864,901.80x = 1,295,384.40 × 443,685.60
  4. Step 4: Simplify right side
    864,901.80x = 574,743,404,744.64
  5. Step 5: Solve for x
    x = 574,743,404,744.64/864,901.80
  6. Step 6: Final answer
    x = 664,518.68

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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.