Home / 1,432,495.85-1,977,125.09-821,058.42

Finding the Fourth Proportional to 1,432,495.85, 1,977,125.09 and 821,058.42

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Solution

The fourth proportional to 1,432,495.85, 1,977,125.09 and 821,058.42 is: 1,133,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,495.85 : 1,977,125.09 = 821,058.42 : x
  2. Step 2: Convert to fraction form
    1,432,495.85/1,977,125.09 = 821,058.42/x
  3. Step 3: Cross multiply
    1,432,495.85x = 1,977,125.09 × 821,058.42
  4. Step 4: Simplify right side
    1,432,495.85x = 1,623,335,202,537.76
  5. Step 5: Solve for x
    x = 1,623,335,202,537.76/1,432,495.85
  6. Step 6: Final answer
    x = 1,133,221.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.