Home / 693,157.40-1,039,835.30-213,425.80

Finding the Fourth Proportional to 693,157.40, 1,039,835.30 and 213,425.80

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Solution

The fourth proportional to 693,157.40, 1,039,835.30 and 213,425.80 is: 320,169.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,157.40 : 1,039,835.30 = 213,425.80 : x
  2. Step 2: Convert to fraction form
    693,157.40/1,039,835.30 = 213,425.80/x
  3. Step 3: Cross multiply
    693,157.40x = 1,039,835.30 × 213,425.80
  4. Step 4: Simplify right side
    693,157.40x = 221,927,680,770.74
  5. Step 5: Solve for x
    x = 221,927,680,770.74/693,157.40
  6. Step 6: Final answer
    x = 320,169.24

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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.