Home / 1,220,882.45-1,831,586.15-411,347.31

Finding the Fourth Proportional to 1,220,882.45, 1,831,586.15 and 411,347.31

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Solution

The fourth proportional to 1,220,882.45, 1,831,586.15 and 411,347.31 is: 617,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,882.45 : 1,831,586.15 = 411,347.31 : x
  2. Step 2: Convert to fraction form
    1,220,882.45/1,831,586.15 = 411,347.31/x
  3. Step 3: Cross multiply
    1,220,882.45x = 1,831,586.15 × 411,347.31
  4. Step 4: Simplify right side
    1,220,882.45x = 753,418,041,443.09
  5. Step 5: Solve for x
    x = 753,418,041,443.09/1,220,882.45
  6. Step 6: Final answer
    x = 617,109.40

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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.