Home / 1,092,421.76-1,638,278.04-418,467.20

Finding the Fourth Proportional to 1,092,421.76, 1,638,278.04 and 418,467.20

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Solution

The fourth proportional to 1,092,421.76, 1,638,278.04 and 418,467.20 is: 627,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,421.76 : 1,638,278.04 = 418,467.20 : x
  2. Step 2: Convert to fraction form
    1,092,421.76/1,638,278.04 = 418,467.20/x
  3. Step 3: Cross multiply
    1,092,421.76x = 1,638,278.04 × 418,467.20
  4. Step 4: Simplify right side
    1,092,421.76x = 685,565,624,220.29
  5. Step 5: Solve for x
    x = 685,565,624,220.29/1,092,421.76
  6. Step 6: Final answer
    x = 627,564.97

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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.