Home / 684,722.70-1,027,084.05-419,002.20

Finding the Fourth Proportional to 684,722.70, 1,027,084.05 and 419,002.20

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Solution

The fourth proportional to 684,722.70, 1,027,084.05 and 419,002.20 is: 628,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,722.70 : 1,027,084.05 = 419,002.20 : x
  2. Step 2: Convert to fraction form
    684,722.70/1,027,084.05 = 419,002.20/x
  3. Step 3: Cross multiply
    684,722.70x = 1,027,084.05 × 419,002.20
  4. Step 4: Simplify right side
    684,722.70x = 430,350,476,534.91
  5. Step 5: Solve for x
    x = 430,350,476,534.91/684,722.70
  6. Step 6: Final answer
    x = 628,503.30

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1.5x scale

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.