Home / 1,213,821.80-1,820,732.70-414,983.60

Finding the Fourth Proportional to 1,213,821.80, 1,820,732.70 and 414,983.60

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Solution

The fourth proportional to 1,213,821.80, 1,820,732.70 and 414,983.60 is: 622,475.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,821.80 : 1,820,732.70 = 414,983.60 : x
  2. Step 2: Convert to fraction form
    1,213,821.80/1,820,732.70 = 414,983.60/x
  3. Step 3: Cross multiply
    1,213,821.80x = 1,820,732.70 × 414,983.60
  4. Step 4: Simplify right side
    1,213,821.80x = 755,574,210,483.72
  5. Step 5: Solve for x
    x = 755,574,210,483.72/1,213,821.80
  6. Step 6: Final answer
    x = 622,475.40

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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.