Home / 745,327.70-1,117,991.55-664,457.30

Finding the Fourth Proportional to 745,327.70, 1,117,991.55 and 664,457.30

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Solution

The fourth proportional to 745,327.70, 1,117,991.55 and 664,457.30 is: 996,685.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,327.70 : 1,117,991.55 = 664,457.30 : x
  2. Step 2: Convert to fraction form
    745,327.70/1,117,991.55 = 664,457.30/x
  3. Step 3: Cross multiply
    745,327.70x = 1,117,991.55 × 664,457.30
  4. Step 4: Simplify right side
    745,327.70x = 742,857,646,735.82
  5. Step 5: Solve for x
    x = 742,857,646,735.82/745,327.70
  6. Step 6: Final answer
    x = 996,685.95

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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.