Home / 862,824.90-1,294,237.35-442,920.90

Finding the Fourth Proportional to 862,824.90, 1,294,237.35 and 442,920.90

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Solution

The fourth proportional to 862,824.90, 1,294,237.35 and 442,920.90 is: 664,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,824.90 : 1,294,237.35 = 442,920.90 : x
  2. Step 2: Convert to fraction form
    862,824.90/1,294,237.35 = 442,920.90/x
  3. Step 3: Cross multiply
    862,824.90x = 1,294,237.35 × 442,920.90
  4. Step 4: Simplify right side
    862,824.90x = 573,244,771,875.62
  5. Step 5: Solve for x
    x = 573,244,771,875.62/862,824.90
  6. Step 6: Final answer
    x = 664,381.35

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Similar ratio
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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.