Home / 1,333,090.90-2,000,102.91-386,518.42

Finding the Fourth Proportional to 1,333,090.90, 2,000,102.91 and 386,518.42

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Solution

The fourth proportional to 1,333,090.90, 2,000,102.91 and 386,518.42 is: 579,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,090.90 : 2,000,102.91 = 386,518.42 : x
  2. Step 2: Convert to fraction form
    1,333,090.90/2,000,102.91 = 386,518.42/x
  3. Step 3: Cross multiply
    1,333,090.90x = 2,000,102.91 × 386,518.42
  4. Step 4: Simplify right side
    1,333,090.90x = 773,076,616,610.60
  5. Step 5: Solve for x
    x = 773,076,616,610.60/1,333,090.90
  6. Step 6: Final answer
    x = 579,912.91

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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.