Home / 1,380,462.39-2,068,948.85-621,495.63

Finding the Fourth Proportional to 1,380,462.39, 2,068,948.85 and 621,495.63

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Solution

The fourth proportional to 1,380,462.39, 2,068,948.85 and 621,495.63 is: 931,457.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,462.39 : 2,068,948.85 = 621,495.63 : x
  2. Step 2: Convert to fraction form
    1,380,462.39/2,068,948.85 = 621,495.63/x
  3. Step 3: Cross multiply
    1,380,462.39x = 2,068,948.85 × 621,495.63
  4. Step 4: Simplify right side
    1,380,462.39x = 1,285,842,665,861.05
  5. Step 5: Solve for x
    x = 1,285,842,665,861.05/1,380,462.39
  6. Step 6: Final answer
    x = 931,457.95

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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.