Home / 925,470.70-1,388,724.45-392,901.10

Finding the Fourth Proportional to 925,470.70, 1,388,724.45 and 392,901.10

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Solution

The fourth proportional to 925,470.70, 1,388,724.45 and 392,901.10 is: 589,571.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,470.70 : 1,388,724.45 = 392,901.10 : x
  2. Step 2: Convert to fraction form
    925,470.70/1,388,724.45 = 392,901.10/x
  3. Step 3: Cross multiply
    925,470.70x = 1,388,724.45 × 392,901.10
  4. Step 4: Simplify right side
    925,470.70x = 545,631,364,001.90
  5. Step 5: Solve for x
    x = 545,631,364,001.90/925,470.70
  6. Step 6: Final answer
    x = 589,571.73

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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.