Home / 1,123,842.20-1,685,763.30-745,928.60

Finding the Fourth Proportional to 1,123,842.20, 1,685,763.30 and 745,928.60

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Solution

The fourth proportional to 1,123,842.20, 1,685,763.30 and 745,928.60 is: 1,118,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,842.20 : 1,685,763.30 = 745,928.60 : x
  2. Step 2: Convert to fraction form
    1,123,842.20/1,685,763.30 = 745,928.60/x
  3. Step 3: Cross multiply
    1,123,842.20x = 1,685,763.30 × 745,928.60
  4. Step 4: Simplify right side
    1,123,842.20x = 1,257,459,058,300.38
  5. Step 5: Solve for x
    x = 1,257,459,058,300.38/1,123,842.20
  6. Step 6: Final answer
    x = 1,118,892.90

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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.