Home / 1,392,608.20-2,088,620.70-683,145.40

Finding the Fourth Proportional to 1,392,608.20, 2,088,620.70 and 683,145.40

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Solution

The fourth proportional to 1,392,608.20, 2,088,620.70 and 683,145.40 is: 1,024,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,608.20 : 2,088,620.70 = 683,145.40 : x
  2. Step 2: Convert to fraction form
    1,392,608.20/2,088,620.70 = 683,145.40/x
  3. Step 3: Cross multiply
    1,392,608.20x = 2,088,620.70 × 683,145.40
  4. Step 4: Simplify right side
    1,392,608.20x = 1,426,831,623,549.78
  5. Step 5: Solve for x
    x = 1,426,831,623,549.78/1,392,608.20
  6. Step 6: Final answer
    x = 1,024,575.06

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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.