Home / 862,839.40-1,293,740.70-442,935.40

Finding the Fourth Proportional to 862,839.40, 1,293,740.70 and 442,935.40

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Solution

The fourth proportional to 862,839.40, 1,293,740.70 and 442,935.40 is: 664,136.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,839.40 : 1,293,740.70 = 442,935.40 : x
  2. Step 2: Convert to fraction form
    862,839.40/1,293,740.70 = 442,935.40/x
  3. Step 3: Cross multiply
    862,839.40x = 1,293,740.70 × 442,935.40
  4. Step 4: Simplify right side
    862,839.40x = 573,043,554,450.78
  5. Step 5: Solve for x
    x = 573,043,554,450.78/862,839.40
  6. Step 6: Final answer
    x = 664,136.98

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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.