Home / 925,688.70-1,388,260.89-393,205.50

Finding the Fourth Proportional to 925,688.70, 1,388,260.89 and 393,205.50

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Solution

The fourth proportional to 925,688.70, 1,388,260.89 and 393,205.50 is: 589,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,688.70 : 1,388,260.89 = 393,205.50 : x
  2. Step 2: Convert to fraction form
    925,688.70/1,388,260.89 = 393,205.50/x
  3. Step 3: Cross multiply
    925,688.70x = 1,388,260.89 × 393,205.50
  4. Step 4: Simplify right side
    925,688.70x = 545,871,817,382.90
  5. Step 5: Solve for x
    x = 545,871,817,382.90/925,688.70
  6. Step 6: Final answer
    x = 589,692.64

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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.