Home / 939,821.40-1,409,732.10-541,690.20

Finding the Fourth Proportional to 939,821.40, 1,409,732.10 and 541,690.20

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Solution

The fourth proportional to 939,821.40, 1,409,732.10 and 541,690.20 is: 812,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,821.40 : 1,409,732.10 = 541,690.20 : x
  2. Step 2: Convert to fraction form
    939,821.40/1,409,732.10 = 541,690.20/x
  3. Step 3: Cross multiply
    939,821.40x = 1,409,732.10 × 541,690.20
  4. Step 4: Simplify right side
    939,821.40x = 763,638,063,195.42
  5. Step 5: Solve for x
    x = 763,638,063,195.42/939,821.40
  6. Step 6: Final answer
    x = 812,535.30

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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.