Home / 1,432,848.60-1,977,347.43-820,989

Finding the Fourth Proportional to 1,432,848.60, 1,977,347.43 and 820,989

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Solution

The fourth proportional to 1,432,848.60, 1,977,347.43 and 820,989 is: 1,132,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,848.60 : 1,977,347.43 = 820,989 : x
  2. Step 2: Convert to fraction form
    1,432,848.60/1,977,347.43 = 820,989/x
  3. Step 3: Cross multiply
    1,432,848.60x = 1,977,347.43 × 820,989
  4. Step 4: Simplify right side
    1,432,848.60x = 1,623,380,489,208.27
  5. Step 5: Solve for x
    x = 1,623,380,489,208.27/1,432,848.60
  6. Step 6: Final answer
    x = 1,132,974.20

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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.