Home / 925,690.58-1,388,263.70-393,207.38

Finding the Fourth Proportional to 925,690.58, 1,388,263.70 and 393,207.38

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Solution

The fourth proportional to 925,690.58, 1,388,263.70 and 393,207.38 is: 589,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,690.58 : 1,388,263.70 = 393,207.38 : x
  2. Step 2: Convert to fraction form
    925,690.58/1,388,263.70 = 393,207.38/x
  3. Step 3: Cross multiply
    925,690.58x = 1,388,263.70 × 393,207.38
  4. Step 4: Simplify right side
    925,690.58x = 545,875,526,267.81
  5. Step 5: Solve for x
    x = 545,875,526,267.81/925,690.58
  6. Step 6: Final answer
    x = 589,695.46

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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.