Home / 1,214,203.80-1,821,305.70-372,646.20

Finding the Fourth Proportional to 1,214,203.80, 1,821,305.70 and 372,646.20

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Solution

The fourth proportional to 1,214,203.80, 1,821,305.70 and 372,646.20 is: 558,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,203.80 : 1,821,305.70 = 372,646.20 : x
  2. Step 2: Convert to fraction form
    1,214,203.80/1,821,305.70 = 372,646.20/x
  3. Step 3: Cross multiply
    1,214,203.80x = 1,821,305.70 × 372,646.20
  4. Step 4: Simplify right side
    1,214,203.80x = 678,702,648,143.34
  5. Step 5: Solve for x
    x = 678,702,648,143.34/1,214,203.80
  6. Step 6: Final answer
    x = 558,969.30

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Double scale
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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.