Home / 684,218.20-1,024,772.10-351,405.40

Finding the Fourth Proportional to 684,218.20, 1,024,772.10 and 351,405.40

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Solution

The fourth proportional to 684,218.20, 1,024,772.10 and 351,405.40 is: 526,309.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,218.20 : 1,024,772.10 = 351,405.40 : x
  2. Step 2: Convert to fraction form
    684,218.20/1,024,772.10 = 351,405.40/x
  3. Step 3: Cross multiply
    684,218.20x = 1,024,772.10 × 351,405.40
  4. Step 4: Simplify right side
    684,218.20x = 360,110,449,709.34
  5. Step 5: Solve for x
    x = 360,110,449,709.34/684,218.20
  6. Step 6: Final answer
    x = 526,309.37

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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.