Home / 761,427.45-1,142,143.74-192,808.28

Finding the Fourth Proportional to 761,427.45, 1,142,143.74 and 192,808.28

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Solution

The fourth proportional to 761,427.45, 1,142,143.74 and 192,808.28 is: 289,213.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,427.45 : 1,142,143.74 = 192,808.28 : x
  2. Step 2: Convert to fraction form
    761,427.45/1,142,143.74 = 192,808.28/x
  3. Step 3: Cross multiply
    761,427.45x = 1,142,143.74 × 192,808.28
  4. Step 4: Simplify right side
    761,427.45x = 220,214,764,311.45
  5. Step 5: Solve for x
    x = 220,214,764,311.45/761,427.45
  6. Step 6: Final answer
    x = 289,213.06

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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.