Home / 1,289,615.80-1,930,737.30-1,156,905.40

Finding the Fourth Proportional to 1,289,615.80, 1,930,737.30 and 1,156,905.40

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Solution

The fourth proportional to 1,289,615.80, 1,930,737.30 and 1,156,905.40 is: 1,732,051.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,615.80 : 1,930,737.30 = 1,156,905.40 : x
  2. Step 2: Convert to fraction form
    1,289,615.80/1,930,737.30 = 1,156,905.40/x
  3. Step 3: Cross multiply
    1,289,615.80x = 1,930,737.30 × 1,156,905.40
  4. Step 4: Simplify right side
    1,289,615.80x = 2,233,680,408,351.42
  5. Step 5: Solve for x
    x = 2,233,680,408,351.42/1,289,615.80
  6. Step 6: Final answer
    x = 1,732,051.06

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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.