Home / 684,438.45-1,026,315.03-211,062.30

Finding the Fourth Proportional to 684,438.45, 1,026,315.03 and 211,062.30

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Solution

The fourth proportional to 684,438.45, 1,026,315.03 and 211,062.30 is: 316,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,438.45 : 1,026,315.03 = 211,062.30 : x
  2. Step 2: Convert to fraction form
    684,438.45/1,026,315.03 = 211,062.30/x
  3. Step 3: Cross multiply
    684,438.45x = 1,026,315.03 × 211,062.30
  4. Step 4: Simplify right side
    684,438.45x = 216,616,410,756.37
  5. Step 5: Solve for x
    x = 216,616,410,756.37/684,438.45
  6. Step 6: Final answer
    x = 316,487.79

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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.