Home / 925,693.20-1,388,267.64-393,210

Finding the Fourth Proportional to 925,693.20, 1,388,267.64 and 393,210

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Solution

The fourth proportional to 925,693.20, 1,388,267.64 and 393,210 is: 589,699.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,693.20 : 1,388,267.64 = 393,210 : x
  2. Step 2: Convert to fraction form
    925,693.20/1,388,267.64 = 393,210/x
  3. Step 3: Cross multiply
    925,693.20x = 1,388,267.64 × 393,210
  4. Step 4: Simplify right side
    925,693.20x = 545,880,718,724.40
  5. Step 5: Solve for x
    x = 545,880,718,724.40/925,693.20
  6. Step 6: Final answer
    x = 589,699.39

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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.