Home / 1,486,722.60-2,230,168.65-421,680.94

Finding the Fourth Proportional to 1,486,722.60, 2,230,168.65 and 421,680.94

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Solution

The fourth proportional to 1,486,722.60, 2,230,168.65 and 421,680.94 is: 632,545.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,722.60 : 2,230,168.65 = 421,680.94 : x
  2. Step 2: Convert to fraction form
    1,486,722.60/2,230,168.65 = 421,680.94/x
  3. Step 3: Cross multiply
    1,486,722.60x = 2,230,168.65 × 421,680.94
  4. Step 4: Simplify right side
    1,486,722.60x = 940,419,605,533.81
  5. Step 5: Solve for x
    x = 940,419,605,533.81/1,486,722.60
  6. Step 6: Final answer
    x = 632,545.44

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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.