Home / 1,020,800.22-1,530,802.89-421,858.14

Finding the Fourth Proportional to 1,020,800.22, 1,530,802.89 and 421,858.14

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Solution

The fourth proportional to 1,020,800.22, 1,530,802.89 and 421,858.14 is: 632,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,800.22 : 1,530,802.89 = 421,858.14 : x
  2. Step 2: Convert to fraction form
    1,020,800.22/1,530,802.89 = 421,858.14/x
  3. Step 3: Cross multiply
    1,020,800.22x = 1,530,802.89 × 421,858.14
  4. Step 4: Simplify right side
    1,020,800.22x = 645,781,659,882.03
  5. Step 5: Solve for x
    x = 645,781,659,882.03/1,020,800.22
  6. Step 6: Final answer
    x = 632,622.96

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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.