Home / 925,470.45-1,388,724.08-392,900.85

Finding the Fourth Proportional to 925,470.45, 1,388,724.08 and 392,900.85

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Solution

The fourth proportional to 925,470.45, 1,388,724.08 and 392,900.85 is: 589,571.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,470.45 : 1,388,724.08 = 392,900.85 : x
  2. Step 2: Convert to fraction form
    925,470.45/1,388,724.08 = 392,900.85/x
  3. Step 3: Cross multiply
    925,470.45x = 1,388,724.08 × 392,900.85
  4. Step 4: Simplify right side
    925,470.45x = 545,630,869,482.96
  5. Step 5: Solve for x
    x = 545,630,869,482.96/925,470.45
  6. Step 6: Final answer
    x = 589,571.36

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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.