Home / 1,180,389.20-1,770,353.40-392,421.20

Finding the Fourth Proportional to 1,180,389.20, 1,770,353.40 and 392,421.20

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Solution

The fourth proportional to 1,180,389.20, 1,770,353.40 and 392,421.20 is: 588,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,389.20 : 1,770,353.40 = 392,421.20 : x
  2. Step 2: Convert to fraction form
    1,180,389.20/1,770,353.40 = 392,421.20/x
  3. Step 3: Cross multiply
    1,180,389.20x = 1,770,353.40 × 392,421.20
  4. Step 4: Simplify right side
    1,180,389.20x = 694,724,205,652.08
  5. Step 5: Solve for x
    x = 694,724,205,652.08/1,180,389.20
  6. Step 6: Final answer
    x = 588,555.20

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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.